Finding the Fourth Proportional to 1,947.64, 2,687.82 and 1,151.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.64 : 2,687.82 = 1,151.08 : x
2. Step 2: Convert to fraction form
   1,947.64/2,687.82 = 1,151.08/x
3. Step 3: Cross multiply
   1,947.64x = 2,687.82 × 1,151.08
4. Step 4: Simplify right side
   1,947.64x = 3,093,895.85
5. Step 5: Solve for x
   x = 3,093,895.85/1,947.64
6. Step 6: Final answer
   x = 1,588.54