Finding the Fourth Proportional to 1,343.30, 1,853.52 and 753.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.30 : 1,853.52 = 753.86 : x
2. Step 2: Convert to fraction form
   1,343.30/1,853.52 = 753.86/x
3. Step 3: Cross multiply
   1,343.30x = 1,853.52 × 753.86
4. Step 4: Simplify right side
   1,343.30x = 1,397,294.59
5. Step 5: Solve for x
   x = 1,397,294.59/1,343.30
6. Step 6: Final answer
   x = 1,040.20