Finding the Fourth Proportional to 2,707.04, 4,061.28 and 1,320.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,707.04 : 4,061.28 = 1,320.32 : x
2. Step 2: Convert to fraction form
   2,707.04/4,061.28 = 1,320.32/x
3. Step 3: Cross multiply
   2,707.04x = 4,061.28 × 1,320.32
4. Step 4: Simplify right side
   2,707.04x = 5,362,189.21
5. Step 5: Solve for x
   x = 5,362,189.21/2,707.04
6. Step 6: Final answer
   x = 1,980.83