Finding the Fourth Proportional to 1,340.61, 1,850.15 and 751.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.61 : 1,850.15 = 751.20 : x
2. Step 2: Convert to fraction form
   1,340.61/1,850.15 = 751.20/x
3. Step 3: Cross multiply
   1,340.61x = 1,850.15 × 751.20
4. Step 4: Simplify right side
   1,340.61x = 1,389,834.56
5. Step 5: Solve for x
   x = 1,389,834.56/1,340.61
6. Step 6: Final answer
   x = 1,036.72