Finding the Fourth Proportional to 1,812.72, 2,500.92 and 1,113.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812.72 : 2,500.92 = 1,113.84 : x
2. Step 2: Convert to fraction form
   1,812.72/2,500.92 = 1,113.84/x
3. Step 3: Cross multiply
   1,812.72x = 2,500.92 × 1,113.84
4. Step 4: Simplify right side
   1,812.72x = 2,785,624.73
5. Step 5: Solve for x
   x = 2,785,624.73/1,812.72
6. Step 6: Final answer
   x = 1,536.71