Finding the Fourth Proportional to 1,248.82, 1,874.57 and 1,056.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248.82 : 1,874.57 = 1,056.18 : x
2. Step 2: Convert to fraction form
   1,248.82/1,874.57 = 1,056.18/x
3. Step 3: Cross multiply
   1,248.82x = 1,874.57 × 1,056.18
4. Step 4: Simplify right side
   1,248.82x = 1,979,883.34
5. Step 5: Solve for x
   x = 1,979,883.34/1,248.82
6. Step 6: Final answer
   x = 1,585.40