Finding the Fourth Proportional to 2,620.02, 3,615.60 and 1,424.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.02 : 3,615.60 = 1,424.99 : x
2. Step 2: Convert to fraction form
   2,620.02/3,615.60 = 1,424.99/x
3. Step 3: Cross multiply
   2,620.02x = 3,615.60 × 1,424.99
4. Step 4: Simplify right side
   2,620.02x = 5,152,168.64
5. Step 5: Solve for x
   x = 5,152,168.64/2,620.02
6. Step 6: Final answer
   x = 1,966.46