Finding the Fourth Proportional to 2,976.78, 4,465.16 and 1,222.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.78 : 4,465.16 = 1,222.63 : x
2. Step 2: Convert to fraction form
   2,976.78/4,465.16 = 1,222.63/x
3. Step 3: Cross multiply
   2,976.78x = 4,465.16 × 1,222.63
4. Step 4: Simplify right side
   2,976.78x = 5,459,225.88
5. Step 5: Solve for x
   x = 5,459,225.88/2,976.78
6. Step 6: Final answer
   x = 1,833.93