Finding the Fourth Proportional to 1,403.91, 2,106.69 and 754.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.91 : 2,106.69 = 754.71 : x
2. Step 2: Convert to fraction form
   1,403.91/2,106.69 = 754.71/x
3. Step 3: Cross multiply
   1,403.91x = 2,106.69 × 754.71
4. Step 4: Simplify right side
   1,403.91x = 1,589,940.01
5. Step 5: Solve for x
   x = 1,589,940.01/1,403.91
6. Step 6: Final answer
   x = 1,132.51