Finding the Fourth Proportional to 1,343.17, 1,853.53 and 753.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.17 : 1,853.53 = 753.72 : x
2. Step 2: Convert to fraction form
   1,343.17/1,853.53 = 753.72/x
3. Step 3: Cross multiply
   1,343.17x = 1,853.53 × 753.72
4. Step 4: Simplify right side
   1,343.17x = 1,397,042.63
5. Step 5: Solve for x
   x = 1,397,042.63/1,343.17
6. Step 6: Final answer
   x = 1,040.11