Finding the Fourth Proportional to 1,373.82, 2,061.30 and 757.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.82 : 2,061.30 = 757.47 : x
2. Step 2: Convert to fraction form
   1,373.82/2,061.30 = 757.47/x
3. Step 3: Cross multiply
   1,373.82x = 2,061.30 × 757.47
4. Step 4: Simplify right side
   1,373.82x = 1,561,382.06
5. Step 5: Solve for x
   x = 1,561,382.06/1,373.82
6. Step 6: Final answer
   x = 1,136.52