Finding the Fourth Proportional to 1,672.38, 2,291.15 and 1,610.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.38 : 2,291.15 = 1,610.07 : x
2. Step 2: Convert to fraction form
   1,672.38/2,291.15 = 1,610.07/x
3. Step 3: Cross multiply
   1,672.38x = 2,291.15 × 1,610.07
4. Step 4: Simplify right side
   1,672.38x = 3,688,903.83
5. Step 5: Solve for x
   x = 3,688,903.83/1,672.38
6. Step 6: Final answer
   x = 2,205.78