Finding the Fourth Proportional to 2,184.17, 3,278.27 and 885.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184.17 : 3,278.27 = 885.74 : x
2. Step 2: Convert to fraction form
   2,184.17/3,278.27 = 885.74/x
3. Step 3: Cross multiply
   2,184.17x = 3,278.27 × 885.74
4. Step 4: Simplify right side
   2,184.17x = 2,903,680.69
5. Step 5: Solve for x
   x = 2,903,680.69/2,184.17
6. Step 6: Final answer
   x = 1,329.42