Finding the Fourth Proportional to 1,516.56, 2,092.24 and 926.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,516.56 : 2,092.24 = 926.88 : x
2. Step 2: Convert to fraction form
   1,516.56/2,092.24 = 926.88/x
3. Step 3: Cross multiply
   1,516.56x = 2,092.24 × 926.88
4. Step 4: Simplify right side
   1,516.56x = 1,939,255.41
5. Step 5: Solve for x
   x = 1,939,255.41/1,516.56
6. Step 6: Final answer
   x = 1,278.72