Finding the Fourth Proportional to 1,559.52, 2,340.72 and 1,091.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.52 : 2,340.72 = 1,091.16 : x
2. Step 2: Convert to fraction form
   1,559.52/2,340.72 = 1,091.16/x
3. Step 3: Cross multiply
   1,559.52x = 2,340.72 × 1,091.16
4. Step 4: Simplify right side
   1,559.52x = 2,554,100.04
5. Step 5: Solve for x
   x = 2,554,100.04/1,559.52
6. Step 6: Final answer
   x = 1,637.75