Finding the Fourth Proportional to 1,373.29, 2,057.52 and 1,155.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.29 : 2,057.52 = 1,155.35 : x
2. Step 2: Convert to fraction form
   1,373.29/2,057.52 = 1,155.35/x
3. Step 3: Cross multiply
   1,373.29x = 2,057.52 × 1,155.35
4. Step 4: Simplify right side
   1,373.29x = 2,377,147.14
5. Step 5: Solve for x
   x = 2,377,147.14/1,373.29
6. Step 6: Final answer
   x = 1,730.99