Finding the Fourth Proportional to 3,348.72, 5,023.53 and 1,157.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,348.72 : 5,023.53 = 1,157.31 : x
2. Step 2: Convert to fraction form
   3,348.72/5,023.53 = 1,157.31/x
3. Step 3: Cross multiply
   3,348.72x = 5,023.53 × 1,157.31
4. Step 4: Simplify right side
   3,348.72x = 5,813,781.50
5. Step 5: Solve for x
   x = 5,813,781.50/3,348.72
6. Step 6: Final answer
   x = 1,736.12