Finding the Fourth Proportional to 1,892.71, 2,611.92 and 1,106.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.71 : 2,611.92 = 1,106.61 : x
2. Step 2: Convert to fraction form
   1,892.71/2,611.92 = 1,106.61/x
3. Step 3: Cross multiply
   1,892.71x = 2,611.92 × 1,106.61
4. Step 4: Simplify right side
   1,892.71x = 2,890,363.73
5. Step 5: Solve for x
   x = 2,890,363.73/1,892.71
6. Step 6: Final answer
   x = 1,527.10