Finding the Fourth Proportional to 2,063.41, 2,847.07 and 1,223.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.41 : 2,847.07 = 1,223.99 : x
2. Step 2: Convert to fraction form
   2,063.41/2,847.07 = 1,223.99/x
3. Step 3: Cross multiply
   2,063.41x = 2,847.07 × 1,223.99
4. Step 4: Simplify right side
   2,063.41x = 3,484,802.64
5. Step 5: Solve for x
   x = 3,484,802.64/2,063.41
6. Step 6: Final answer
   x = 1,688.86