Finding the Fourth Proportional to 1,337.79, 1,846.20 and 748.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.79 : 1,846.20 = 748.21 : x
2. Step 2: Convert to fraction form
   1,337.79/1,846.20 = 748.21/x
3. Step 3: Cross multiply
   1,337.79x = 1,846.20 × 748.21
4. Step 4: Simplify right side
   1,337.79x = 1,381,345.30
5. Step 5: Solve for x
   x = 1,381,345.30/1,337.79
6. Step 6: Final answer
   x = 1,032.56