Finding the Fourth Proportional to 2,608.90, 3,600.42 and 1,430.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.90 : 3,600.42 = 1,430.02 : x
2. Step 2: Convert to fraction form
   2,608.90/3,600.42 = 1,430.02/x
3. Step 3: Cross multiply
   2,608.90x = 3,600.42 × 1,430.02
4. Step 4: Simplify right side
   2,608.90x = 5,148,672.61
5. Step 5: Solve for x
   x = 5,148,672.61/2,608.90
6. Step 6: Final answer
   x = 1,973.50