Finding the Fourth Proportional to 1,892.89, 2,611.80 and 1,106.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.89 : 2,611.80 = 1,106.78 : x
2. Step 2: Convert to fraction form
   1,892.89/2,611.80 = 1,106.78/x
3. Step 3: Cross multiply
   1,892.89x = 2,611.80 × 1,106.78
4. Step 4: Simplify right side
   1,892.89x = 2,890,688.00
5. Step 5: Solve for x
   x = 2,890,688.00/1,892.89
6. Step 6: Final answer
   x = 1,527.13