Finding the Fourth Proportional to 1,401.97, 2,101.74 and 708.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.97 : 2,101.74 = 708.06 : x
2. Step 2: Convert to fraction form
   1,401.97/2,101.74 = 708.06/x
3. Step 3: Cross multiply
   1,401.97x = 2,101.74 × 708.06
4. Step 4: Simplify right side
   1,401.97x = 1,488,158.02
5. Step 5: Solve for x
   x = 1,488,158.02/1,401.97
6. Step 6: Final answer
   x = 1,061.48