Finding the Fourth Proportional to 1,342.99, 1,853.31 and 753.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.99 : 1,853.31 = 753.49 : x
2. Step 2: Convert to fraction form
   1,342.99/1,853.31 = 753.49/x
3. Step 3: Cross multiply
   1,342.99x = 1,853.31 × 753.49
4. Step 4: Simplify right side
   1,342.99x = 1,396,450.55
5. Step 5: Solve for x
   x = 1,396,450.55/1,342.99
6. Step 6: Final answer
   x = 1,039.81