Finding the Fourth Proportional to 1,404.90, 2,106.09 and 754.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.90 : 2,106.09 = 754.92 : x
2. Step 2: Convert to fraction form
   1,404.90/2,106.09 = 754.92/x
3. Step 3: Cross multiply
   1,404.90x = 2,106.09 × 754.92
4. Step 4: Simplify right side
   1,404.90x = 1,589,929.46
5. Step 5: Solve for x
   x = 1,589,929.46/1,404.90
6. Step 6: Final answer
   x = 1,131.70