Finding the Fourth Proportional to 2,865.77, 4,298.88 and 1,222.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865.77 : 4,298.88 = 1,222.33 : x
2. Step 2: Convert to fraction form
   2,865.77/4,298.88 = 1,222.33/x
3. Step 3: Cross multiply
   2,865.77x = 4,298.88 × 1,222.33
4. Step 4: Simplify right side
   2,865.77x = 5,254,636.19
5. Step 5: Solve for x
   x = 5,254,636.19/2,865.77
6. Step 6: Final answer
   x = 1,833.59