Finding the Fourth Proportional to 3,737.04, 5,155.60 and 2,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,737.04 : 5,155.60 = 2,478.72 : x
2. Step 2: Convert to fraction form
   3,737.04/5,155.60 = 2,478.72/x
3. Step 3: Cross multiply
   3,737.04x = 5,155.60 × 2,478.72
4. Step 4: Simplify right side
   3,737.04x = 12,779,288.83
5. Step 5: Solve for x
   x = 12,779,288.83/3,737.04
6. Step 6: Final answer
   x = 3,419.63