Finding the Fourth Proportional to 3,714.18, 5,560.34 and 2,478.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.18 : 5,560.34 = 2,478.53 : x
2. Step 2: Convert to fraction form
   3,714.18/5,560.34 = 2,478.53/x
3. Step 3: Cross multiply
   3,714.18x = 5,560.34 × 2,478.53
4. Step 4: Simplify right side
   3,714.18x = 13,781,429.31
5. Step 5: Solve for x
   x = 13,781,429.31/3,714.18
6. Step 6: Final answer
   x = 3,710.49