Finding the Fourth Proportional to 1,722.83, 2,583.77 and 748.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.83 : 2,583.77 = 748.71 : x
2. Step 2: Convert to fraction form
   1,722.83/2,583.77 = 748.71/x
3. Step 3: Cross multiply
   1,722.83x = 2,583.77 × 748.71
4. Step 4: Simplify right side
   1,722.83x = 1,934,490.69
5. Step 5: Solve for x
   x = 1,934,490.69/1,722.83
6. Step 6: Final answer
   x = 1,122.86