Finding the Fourth Proportional to 1,249.34, 1,872.71 and 556.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249.34 : 1,872.71 = 556.34 : x
2. Step 2: Convert to fraction form
   1,249.34/1,872.71 = 556.34/x
3. Step 3: Cross multiply
   1,249.34x = 1,872.71 × 556.34
4. Step 4: Simplify right side
   1,249.34x = 1,041,856.55
5. Step 5: Solve for x
   x = 1,041,856.55/1,249.34
6. Step 6: Final answer
   x = 833.93