Finding the Fourth Proportional to 1,847.69, 2,769.15 and 750.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,847.69 : 2,769.15 = 750.78 : x
2. Step 2: Convert to fraction form
   1,847.69/2,769.15 = 750.78/x
3. Step 3: Cross multiply
   1,847.69x = 2,769.15 × 750.78
4. Step 4: Simplify right side
   1,847.69x = 2,079,025.61
5. Step 5: Solve for x
   x = 2,079,025.61/1,847.69
6. Step 6: Final answer
   x = 1,125.20