Finding the Fourth Proportional to 1,411.94, 2,118.54 and 761.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.94 : 2,118.54 = 761.92 : x
2. Step 2: Convert to fraction form
   1,411.94/2,118.54 = 761.92/x
3. Step 3: Cross multiply
   1,411.94x = 2,118.54 × 761.92
4. Step 4: Simplify right side
   1,411.94x = 1,614,158.00
5. Step 5: Solve for x
   x = 1,614,158.00/1,411.94
6. Step 6: Final answer
   x = 1,143.22