Finding the Fourth Proportional to 4,156.30, 5,735.61 and 2,387.86

Step by Step Solution

1. Step 1: Write the proportion equation
   4,156.30 : 5,735.61 = 2,387.86 : x
2. Step 2: Convert to fraction form
   4,156.30/5,735.61 = 2,387.86/x
3. Step 3: Cross multiply
   4,156.30x = 5,735.61 × 2,387.86
4. Step 4: Simplify right side
   4,156.30x = 13,695,833.69
5. Step 5: Solve for x
   x = 13,695,833.69/4,156.30
6. Step 6: Final answer
   x = 3,295.20