Finding the Fourth Proportional to 1,432.10, 1,977.50 and 1,077.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.10 : 1,977.50 = 1,077.41 : x
2. Step 2: Convert to fraction form
   1,432.10/1,977.50 = 1,077.41/x
3. Step 3: Cross multiply
   1,432.10x = 1,977.50 × 1,077.41
4. Step 4: Simplify right side
   1,432.10x = 2,130,575.27
5. Step 5: Solve for x
   x = 2,130,575.27/1,432.10
6. Step 6: Final answer
   x = 1,487.73