Finding the Fourth Proportional to 1,118.52, 1,671.71 and 1,030.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.52 : 1,671.71 = 1,030.98 : x
2. Step 2: Convert to fraction form
   1,118.52/1,671.71 = 1,030.98/x
3. Step 3: Cross multiply
   1,118.52x = 1,671.71 × 1,030.98
4. Step 4: Simplify right side
   1,118.52x = 1,723,494.42
5. Step 5: Solve for x
   x = 1,723,494.42/1,118.52
6. Step 6: Final answer
   x = 1,540.87