Finding the Fourth Proportional to 2,610.50, 3,602.16 and 1,431.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.50 : 3,602.16 = 1,431.26 : x
2. Step 2: Convert to fraction form
   2,610.50/3,602.16 = 1,431.26/x
3. Step 3: Cross multiply
   2,610.50x = 3,602.16 × 1,431.26
4. Step 4: Simplify right side
   2,610.50x = 5,155,627.52
5. Step 5: Solve for x
   x = 5,155,627.52/2,610.50
6. Step 6: Final answer
   x = 1,974.96