Finding the Fourth Proportional to 1,915.52, 2,643.16 and 1,169.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.52 : 2,643.16 = 1,169.12 : x
2. Step 2: Convert to fraction form
   1,915.52/2,643.16 = 1,169.12/x
3. Step 3: Cross multiply
   1,915.52x = 2,643.16 × 1,169.12
4. Step 4: Simplify right side
   1,915.52x = 3,090,171.22
5. Step 5: Solve for x
   x = 3,090,171.22/1,915.52
6. Step 6: Final answer
   x = 1,613.23