Finding the Fourth Proportional to 2,610.55, 3,602.54 and 1,431.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.55 : 3,602.54 = 1,431.62 : x
2. Step 2: Convert to fraction form
   2,610.55/3,602.54 = 1,431.62/x
3. Step 3: Cross multiply
   2,610.55x = 3,602.54 × 1,431.62
4. Step 4: Simplify right side
   2,610.55x = 5,157,468.31
5. Step 5: Solve for x
   x = 5,157,468.31/2,610.55
6. Step 6: Final answer
   x = 1,975.63