Finding the Fourth Proportional to 1,387.51, 1,914.76 and 758.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387.51 : 1,914.76 = 758.04 : x
2. Step 2: Convert to fraction form
   1,387.51/1,914.76 = 758.04/x
3. Step 3: Cross multiply
   1,387.51x = 1,914.76 × 758.04
4. Step 4: Simplify right side
   1,387.51x = 1,451,464.67
5. Step 5: Solve for x
   x = 1,451,464.67/1,387.51
6. Step 6: Final answer
   x = 1,046.09