Finding the Fourth Proportional to 6,398.77, 8,830.20 and 3,566.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,398.77 : 8,830.20 = 3,566.05 : x
2. Step 2: Convert to fraction form
   6,398.77/8,830.20 = 3,566.05/x
3. Step 3: Cross multiply
   6,398.77x = 8,830.20 × 3,566.05
4. Step 4: Simplify right side
   6,398.77x = 31,488,934.71
5. Step 5: Solve for x
   x = 31,488,934.71/6,398.77
6. Step 6: Final answer
   x = 4,921.09