Finding the Fourth Proportional to 1,432.24, 1,977.15 and 1,012.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.24 : 1,977.15 = 1,012.93 : x
2. Step 2: Convert to fraction form
   1,432.24/1,977.15 = 1,012.93/x
3. Step 3: Cross multiply
   1,432.24x = 1,977.15 × 1,012.93
4. Step 4: Simplify right side
   1,432.24x = 2,002,714.55
5. Step 5: Solve for x
   x = 2,002,714.55/1,432.24
6. Step 6: Final answer
   x = 1,398.31