Finding the Fourth Proportional to 2,946.72, 4,422.51 and 1,216.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,946.72 : 4,422.51 = 1,216.56 : x
2. Step 2: Convert to fraction form
   2,946.72/4,422.51 = 1,216.56/x
3. Step 3: Cross multiply
   2,946.72x = 4,422.51 × 1,216.56
4. Step 4: Simplify right side
   2,946.72x = 5,380,248.77
5. Step 5: Solve for x
   x = 5,380,248.77/2,946.72
6. Step 6: Final answer
   x = 1,825.84