Finding the Fourth Proportional to 1,665.13, 2,281.22 and 1,602.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.13 : 2,281.22 = 1,602.82 : x
2. Step 2: Convert to fraction form
   1,665.13/2,281.22 = 1,602.82/x
3. Step 3: Cross multiply
   1,665.13x = 2,281.22 × 1,602.82
4. Step 4: Simplify right side
   1,665.13x = 3,656,385.04
5. Step 5: Solve for x
   x = 3,656,385.04/1,665.13
6. Step 6: Final answer
   x = 2,195.86