Finding the Fourth Proportional to 1,628.61, 2,440.52 and 748.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628.61 : 2,440.52 = 748.94 : x
2. Step 2: Convert to fraction form
   1,628.61/2,440.52 = 748.94/x
3. Step 3: Cross multiply
   1,628.61x = 2,440.52 × 748.94
4. Step 4: Simplify right side
   1,628.61x = 1,827,787.10
5. Step 5: Solve for x
   x = 1,827,787.10/1,628.61
6. Step 6: Final answer
   x = 1,122.30