Finding the Fourth Proportional to 2,216.72, 3,325.86 and 984.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.72 : 3,325.86 = 984.02 : x
2. Step 2: Convert to fraction form
   2,216.72/3,325.86 = 984.02/x
3. Step 3: Cross multiply
   2,216.72x = 3,325.86 × 984.02
4. Step 4: Simplify right side
   2,216.72x = 3,272,696.13
5. Step 5: Solve for x
   x = 3,272,696.13/2,216.72
6. Step 6: Final answer
   x = 1,476.37