Finding the Fourth Proportional to 2,213.37, 3,320.80 and 1,116.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.37 : 3,320.80 = 1,116.83 : x
2. Step 2: Convert to fraction form
   2,213.37/3,320.80 = 1,116.83/x
3. Step 3: Cross multiply
   2,213.37x = 3,320.80 × 1,116.83
4. Step 4: Simplify right side
   2,213.37x = 3,708,774.57
5. Step 5: Solve for x
   x = 3,708,774.57/2,213.37
6. Step 6: Final answer
   x = 1,675.62