Finding the Fourth Proportional to 2,069.39, 2,856.17 and 1,229.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.39 : 2,856.17 = 1,229.93 : x
2. Step 2: Convert to fraction form
   2,069.39/2,856.17 = 1,229.93/x
3. Step 3: Cross multiply
   2,069.39x = 2,856.17 × 1,229.93
4. Step 4: Simplify right side
   2,069.39x = 3,512,868.74
5. Step 5: Solve for x
   x = 3,512,868.74/2,069.39
6. Step 6: Final answer
   x = 1,697.54