Finding the Fourth Proportional to 1,947.52, 2,687.60 and 1,150.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.52 : 2,687.60 = 1,150.78 : x
2. Step 2: Convert to fraction form
   1,947.52/2,687.60 = 1,150.78/x
3. Step 3: Cross multiply
   1,947.52x = 2,687.60 × 1,150.78
4. Step 4: Simplify right side
   1,947.52x = 3,092,836.33
5. Step 5: Solve for x
   x = 3,092,836.33/1,947.52
6. Step 6: Final answer
   x = 1,588.09