Finding the Fourth Proportional to 3,646.71, 5,030.89 and 2,385.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,646.71 : 5,030.89 = 2,385.57 : x
2. Step 2: Convert to fraction form
   3,646.71/5,030.89 = 2,385.57/x
3. Step 3: Cross multiply
   3,646.71x = 5,030.89 × 2,385.57
4. Step 4: Simplify right side
   3,646.71x = 12,001,503.18
5. Step 5: Solve for x
   x = 12,001,503.18/3,646.71
6. Step 6: Final answer
   x = 3,291.05