Finding the Fourth Proportional to 2,790.38, 4,184.76 and 1,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.38 : 4,184.76 = 1,124.50 : x
2. Step 2: Convert to fraction form
   2,790.38/4,184.76 = 1,124.50/x
3. Step 3: Cross multiply
   2,790.38x = 4,184.76 × 1,124.50
4. Step 4: Simplify right side
   2,790.38x = 4,705,762.62
5. Step 5: Solve for x
   x = 4,705,762.62/2,790.38
6. Step 6: Final answer
   x = 1,686.42