Finding the Fourth Proportional to 1,358.52, 1,877.82 and 1,012.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.52 : 1,877.82 = 1,012.44 : x
2. Step 2: Convert to fraction form
   1,358.52/1,877.82 = 1,012.44/x
3. Step 3: Cross multiply
   1,358.52x = 1,877.82 × 1,012.44
4. Step 4: Simplify right side
   1,358.52x = 1,901,180.08
5. Step 5: Solve for x
   x = 1,901,180.08/1,358.52
6. Step 6: Final answer
   x = 1,399.45