Finding the Fourth Proportional to 2,117.61, 3,174.12 and 884.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.61 : 3,174.12 = 884.25 : x
2. Step 2: Convert to fraction form
   2,117.61/3,174.12 = 884.25/x
3. Step 3: Cross multiply
   2,117.61x = 3,174.12 × 884.25
4. Step 4: Simplify right side
   2,117.61x = 2,806,715.61
5. Step 5: Solve for x
   x = 2,806,715.61/2,117.61
6. Step 6: Final answer
   x = 1,325.42