Finding the Fourth Proportional to 2,616.21, 3,925.89 and 1,135.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.21 : 3,925.89 = 1,135.18 : x
2. Step 2: Convert to fraction form
   2,616.21/3,925.89 = 1,135.18/x
3. Step 3: Cross multiply
   2,616.21x = 3,925.89 × 1,135.18
4. Step 4: Simplify right side
   2,616.21x = 4,456,591.81
5. Step 5: Solve for x
   x = 4,456,591.81/2,616.21
6. Step 6: Final answer
   x = 1,703.45