Finding the Fourth Proportional to 1,404.12, 2,104.34 and 754.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.12 : 2,104.34 = 754.08 : x
2. Step 2: Convert to fraction form
   1,404.12/2,104.34 = 754.08/x
3. Step 3: Cross multiply
   1,404.12x = 2,104.34 × 754.08
4. Step 4: Simplify right side
   1,404.12x = 1,586,840.71
5. Step 5: Solve for x
   x = 1,586,840.71/1,404.12
6. Step 6: Final answer
   x = 1,130.13