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Finding the Fourth Proportional to 1,986,077, 2,978,672.14 and 920,980.66

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Solution

The fourth proportional to 1,986,077, 2,978,672.14 and 920,980.66 is: 1,381,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,077 : 2,978,672.14 = 920,980.66 : x
  2. Step 2: Convert to fraction form
    1,986,077/2,978,672.14 = 920,980.66/x
  3. Step 3: Cross multiply
    1,986,077x = 2,978,672.14 × 920,980.66
  4. Step 4: Simplify right side
    1,986,077x = 2,743,299,433,420.81
  5. Step 5: Solve for x
    x = 2,743,299,433,420.81/1,986,077
  6. Step 6: Final answer
    x = 1,381,265.40

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