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Finding the Fourth Proportional to 2,205,978.32, 3,043,777.88 and 1,287,790.76

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Solution

The fourth proportional to 2,205,978.32, 3,043,777.88 and 1,287,790.76 is: 1,776,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205,978.32 : 3,043,777.88 = 1,287,790.76 : x
  2. Step 2: Convert to fraction form
    2,205,978.32/3,043,777.88 = 1,287,790.76/x
  3. Step 3: Cross multiply
    2,205,978.32x = 3,043,777.88 × 1,287,790.76
  4. Step 4: Simplify right side
    2,205,978.32x = 3,919,749,029,356.39
  5. Step 5: Solve for x
    x = 3,919,749,029,356.39/2,205,978.32
  6. Step 6: Final answer
    x = 1,776,875.59

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