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Finding the Fourth Proportional to 1,866.91, 2,800.77 and 568.35

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Solution

The fourth proportional to 1,866.91, 2,800.77 and 568.35 is: 852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.91 : 2,800.77 = 568.35 : x
  2. Step 2: Convert to fraction form
    1,866.91/2,800.77 = 568.35/x
  3. Step 3: Cross multiply
    1,866.91x = 2,800.77 × 568.35
  4. Step 4: Simplify right side
    1,866.91x = 1,591,803.63
  5. Step 5: Solve for x
    x = 1,591,803.63/1,866.91
  6. Step 6: Final answer
    x = 852.64

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