Finding the Fourth Proportional to 2,610.52, 3,602.52 and 1,431.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.52 : 3,602.52 = 1,431.60 : x
2. Step 2: Convert to fraction form
   2,610.52/3,602.52 = 1,431.60/x
3. Step 3: Cross multiply
   2,610.52x = 3,602.52 × 1,431.60
4. Step 4: Simplify right side
   2,610.52x = 5,157,367.63
5. Step 5: Solve for x
   x = 5,157,367.63/2,610.52
6. Step 6: Final answer
   x = 1,975.61