Finding the Fourth Proportional to 1,343.49, 1,853.82 and 753.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.49 : 1,853.82 = 753.99 : x
2. Step 2: Convert to fraction form
   1,343.49/1,853.82 = 753.99/x
3. Step 3: Cross multiply
   1,343.49x = 1,853.82 × 753.99
4. Step 4: Simplify right side
   1,343.49x = 1,397,761.74
5. Step 5: Solve for x
   x = 1,397,761.74/1,343.49
6. Step 6: Final answer
   x = 1,040.40