Finding the Fourth Proportional to 1,561.82, 2,152.35 and 1,118.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.82 : 2,152.35 = 1,118.96 : x
2. Step 2: Convert to fraction form
   1,561.82/2,152.35 = 1,118.96/x
3. Step 3: Cross multiply
   1,561.82x = 2,152.35 × 1,118.96
4. Step 4: Simplify right side
   1,561.82x = 2,408,382.79
5. Step 5: Solve for x
   x = 2,408,382.79/1,561.82
6. Step 6: Final answer
   x = 1,542.03