Finding the Fourth Proportional to 1,343.16, 1,853.54 and 753.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.16 : 1,853.54 = 753.72 : x
2. Step 2: Convert to fraction form
   1,343.16/1,853.54 = 753.72/x
3. Step 3: Cross multiply
   1,343.16x = 1,853.54 × 753.72
4. Step 4: Simplify right side
   1,343.16x = 1,397,050.17
5. Step 5: Solve for x
   x = 1,397,050.17/1,343.16
6. Step 6: Final answer
   x = 1,040.12