Finding the Fourth Proportional to 2,610.32, 3,602.22 and 1,431.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.32 : 3,602.22 = 1,431.40 : x
2. Step 2: Convert to fraction form
   2,610.32/3,602.22 = 1,431.40/x
3. Step 3: Cross multiply
   2,610.32x = 3,602.22 × 1,431.40
4. Step 4: Simplify right side
   2,610.32x = 5,156,217.71
5. Step 5: Solve for x
   x = 5,156,217.71/2,610.32
6. Step 6: Final answer
   x = 1,975.32