Finding the Fourth Proportional to 2,618.02, 3,612.72 and 1,610.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.02 : 3,612.72 = 1,610.11 : x
2. Step 2: Convert to fraction form
   2,618.02/3,612.72 = 1,610.11/x
3. Step 3: Cross multiply
   2,618.02x = 3,612.72 × 1,610.11
4. Step 4: Simplify right side
   2,618.02x = 5,816,876.60
5. Step 5: Solve for x
   x = 5,816,876.60/2,618.02
6. Step 6: Final answer
   x = 2,221.86