Finding the Fourth Proportional to 1,142.93, 1,713.17 and 753.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.93 : 1,713.17 = 753.32 : x
2. Step 2: Convert to fraction form
   1,142.93/1,713.17 = 753.32/x
3. Step 3: Cross multiply
   1,142.93x = 1,713.17 × 753.32
4. Step 4: Simplify right side
   1,142.93x = 1,290,552.89
5. Step 5: Solve for x
   x = 1,290,552.89/1,142.93
6. Step 6: Final answer
   x = 1,129.17