Finding the Fourth Proportional to 2,372.61, 3,559.47 and 729.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,372.61 : 3,559.47 = 729.15 : x
2. Step 2: Convert to fraction form
   2,372.61/3,559.47 = 729.15/x
3. Step 3: Cross multiply
   2,372.61x = 3,559.47 × 729.15
4. Step 4: Simplify right side
   2,372.61x = 2,595,387.55
5. Step 5: Solve for x
   x = 2,595,387.55/2,372.61
6. Step 6: Final answer
   x = 1,093.90