Finding the Fourth Proportional to 1,926.41, 2,658.47 and 1,087.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.41 : 2,658.47 = 1,087.15 : x
2. Step 2: Convert to fraction form
   1,926.41/2,658.47 = 1,087.15/x
3. Step 3: Cross multiply
   1,926.41x = 2,658.47 × 1,087.15
4. Step 4: Simplify right side
   1,926.41x = 2,890,150.22
5. Step 5: Solve for x
   x = 2,890,150.22/1,926.41
6. Step 6: Final answer
   x = 1,500.28