Finding the Fourth Proportional to 1,250.33, 1,874.34 and 762.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250.33 : 1,874.34 = 762.30 : x
2. Step 2: Convert to fraction form
   1,250.33/1,874.34 = 762.30/x
3. Step 3: Cross multiply
   1,250.33x = 1,874.34 × 762.30
4. Step 4: Simplify right side
   1,250.33x = 1,428,809.38
5. Step 5: Solve for x
   x = 1,428,809.38/1,250.33
6. Step 6: Final answer
   x = 1,142.75