Finding the Fourth Proportional to 1,789.89, 2,684.49 and 749.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.89 : 2,684.49 = 749.61 : x
2. Step 2: Convert to fraction form
   1,789.89/2,684.49 = 749.61/x
3. Step 3: Cross multiply
   1,789.89x = 2,684.49 × 749.61
4. Step 4: Simplify right side
   1,789.89x = 2,012,320.55
5. Step 5: Solve for x
   x = 2,012,320.55/1,789.89
6. Step 6: Final answer
   x = 1,124.27