Finding the Fourth Proportional to 1,661.56, 2,290.26 and 1,100.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661.56 : 2,290.26 = 1,100.92 : x
2. Step 2: Convert to fraction form
   1,661.56/2,290.26 = 1,100.92/x
3. Step 3: Cross multiply
   1,661.56x = 2,290.26 × 1,100.92
4. Step 4: Simplify right side
   1,661.56x = 2,521,393.04
5. Step 5: Solve for x
   x = 2,521,393.04/1,661.56
6. Step 6: Final answer
   x = 1,517.49