Finding the Fourth Proportional to 1,926.29, 2,658.17 and 1,086.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.29 : 2,658.17 = 1,086.99 : x
2. Step 2: Convert to fraction form
   1,926.29/2,658.17 = 1,086.99/x
3. Step 3: Cross multiply
   1,926.29x = 2,658.17 × 1,086.99
4. Step 4: Simplify right side
   1,926.29x = 2,889,404.21
5. Step 5: Solve for x
   x = 2,889,404.21/1,926.29
6. Step 6: Final answer
   x = 1,499.99