Finding the Fourth Proportional to 1,250.28, 1,876.72 and 921.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250.28 : 1,876.72 = 921.59 : x
2. Step 2: Convert to fraction form
   1,250.28/1,876.72 = 921.59/x
3. Step 3: Cross multiply
   1,250.28x = 1,876.72 × 921.59
4. Step 4: Simplify right side
   1,250.28x = 1,729,566.38
5. Step 5: Solve for x
   x = 1,729,566.38/1,250.28
6. Step 6: Final answer
   x = 1,383.34