Finding the Fourth Proportional to 1,361.55, 1,879.17 and 1,029.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,361.55 : 1,879.17 = 1,029.41 : x
2. Step 2: Convert to fraction form
   1,361.55/1,879.17 = 1,029.41/x
3. Step 3: Cross multiply
   1,361.55x = 1,879.17 × 1,029.41
4. Step 4: Simplify right side
   1,361.55x = 1,934,430.85
5. Step 5: Solve for x
   x = 1,934,430.85/1,361.55
6. Step 6: Final answer
   x = 1,420.75