Finding the Fourth Proportional to 2,065.16, 2,849.72 and 1,225.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.16 : 2,849.72 = 1,225.71 : x
2. Step 2: Convert to fraction form
   2,065.16/2,849.72 = 1,225.71/x
3. Step 3: Cross multiply
   2,065.16x = 2,849.72 × 1,225.71
4. Step 4: Simplify right side
   2,065.16x = 3,492,924.17
5. Step 5: Solve for x
   x = 3,492,924.17/2,065.16
6. Step 6: Final answer
   x = 1,691.36