Finding the Fourth Proportional to 1,962.83, 2,709.59 and 1,217.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,962.83 : 2,709.59 = 1,217.81 : x
2. Step 2: Convert to fraction form
   1,962.83/2,709.59 = 1,217.81/x
3. Step 3: Cross multiply
   1,962.83x = 2,709.59 × 1,217.81
4. Step 4: Simplify right side
   1,962.83x = 3,299,746.16
5. Step 5: Solve for x
   x = 3,299,746.16/1,962.83
6. Step 6: Final answer
   x = 1,681.12