Finding the Fourth Proportional to 2,212.52, 3,316.95 and 1,116.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.52 : 3,316.95 = 1,116.32 : x
2. Step 2: Convert to fraction form
   2,212.52/3,316.95 = 1,116.32/x
3. Step 3: Cross multiply
   2,212.52x = 3,316.95 × 1,116.32
4. Step 4: Simplify right side
   2,212.52x = 3,702,761.04
5. Step 5: Solve for x
   x = 3,702,761.04/2,212.52
6. Step 6: Final answer
   x = 1,673.55