Finding the Fourth Proportional to 1,377.91, 1,901.50 and 748.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.91 : 1,901.50 = 748.42 : x
2. Step 2: Convert to fraction form
   1,377.91/1,901.50 = 748.42/x
3. Step 3: Cross multiply
   1,377.91x = 1,901.50 × 748.42
4. Step 4: Simplify right side
   1,377.91x = 1,423,125.38
5. Step 5: Solve for x
   x = 1,423,125.38/1,377.91
6. Step 6: Final answer
   x = 1,032.81