Finding the Fourth Proportional to 1,121.86, 1,674.73 and 1,048.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,121.86 : 1,674.73 = 1,048.42 : x
2. Step 2: Convert to fraction form
   1,121.86/1,674.73 = 1,048.42/x
3. Step 3: Cross multiply
   1,121.86x = 1,674.73 × 1,048.42
4. Step 4: Simplify right side
   1,121.86x = 1,755,820.43
5. Step 5: Solve for x
   x = 1,755,820.43/1,121.86
6. Step 6: Final answer
   x = 1,565.10