Finding the Fourth Proportional to 2,200.74, 3,314.18 and 1,915.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.74 : 3,314.18 = 1,915.62 : x
2. Step 2: Convert to fraction form
   2,200.74/3,314.18 = 1,915.62/x
3. Step 3: Cross multiply
   2,200.74x = 3,314.18 × 1,915.62
4. Step 4: Simplify right side
   2,200.74x = 6,348,699.91
5. Step 5: Solve for x
   x = 6,348,699.91/2,200.74
6. Step 6: Final answer
   x = 2,884.80