Finding the Fourth Proportional to 1,414.94, 2,123.70 and 722.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,414.94 : 2,123.70 = 722.10 : x
2. Step 2: Convert to fraction form
   1,414.94/2,123.70 = 722.10/x
3. Step 3: Cross multiply
   1,414.94x = 2,123.70 × 722.10
4. Step 4: Simplify right side
   1,414.94x = 1,533,520.16
5. Step 5: Solve for x
   x = 1,533,520.16/1,414.94
6. Step 6: Final answer
   x = 1,083.81