Finding the Fourth Proportional to 2,709.02, 4,061.25 and 1,321.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.02 : 4,061.25 = 1,321.64 : x
2. Step 2: Convert to fraction form
   2,709.02/4,061.25 = 1,321.64/x
3. Step 3: Cross multiply
   2,709.02x = 4,061.25 × 1,321.64
4. Step 4: Simplify right side
   2,709.02x = 5,367,510.45
5. Step 5: Solve for x
   x = 5,367,510.45/2,709.02
6. Step 6: Final answer
   x = 1,981.35