Finding the Fourth Proportional to 2,887.83, 4,328.69 and 1,222.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,887.83 : 4,328.69 = 1,222.88 : x
2. Step 2: Convert to fraction form
   2,887.83/4,328.69 = 1,222.88/x
3. Step 3: Cross multiply
   2,887.83x = 4,328.69 × 1,222.88
4. Step 4: Simplify right side
   2,887.83x = 5,293,440.67
5. Step 5: Solve for x
   x = 5,293,440.67/2,887.83
6. Step 6: Final answer
   x = 1,833.02