Finding the Fourth Proportional to 1,811.50, 2,499.94 and 1,112.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.50 : 2,499.94 = 1,112.74 : x
2. Step 2: Convert to fraction form
   1,811.50/2,499.94 = 1,112.74/x
3. Step 3: Cross multiply
   1,811.50x = 2,499.94 × 1,112.74
4. Step 4: Simplify right side
   1,811.50x = 2,781,783.24
5. Step 5: Solve for x
   x = 2,781,783.24/1,811.50
6. Step 6: Final answer
   x = 1,535.62