Finding the Fourth Proportional to 1,915.72, 2,648.04 and 1,762.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.72 : 2,648.04 = 1,762.64 : x
2. Step 2: Convert to fraction form
   1,915.72/2,648.04 = 1,762.64/x
3. Step 3: Cross multiply
   1,915.72x = 2,648.04 × 1,762.64
4. Step 4: Simplify right side
   1,915.72x = 4,667,541.23
5. Step 5: Solve for x
   x = 4,667,541.23/1,915.72
6. Step 6: Final answer
   x = 2,436.44