Finding the Fourth Proportional to 2,706.08, 4,059.41 and 1,320.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,706.08 : 4,059.41 = 1,320.17 : x
2. Step 2: Convert to fraction form
   2,706.08/4,059.41 = 1,320.17/x
3. Step 3: Cross multiply
   2,706.08x = 4,059.41 × 1,320.17
4. Step 4: Simplify right side
   2,706.08x = 5,359,084.40
5. Step 5: Solve for x
   x = 5,359,084.40/2,706.08
6. Step 6: Final answer
   x = 1,980.39