Finding the Fourth Proportional to 1,926.38, 2,658.92 and 1,129.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.38 : 2,658.92 = 1,129.88 : x
2. Step 2: Convert to fraction form
   1,926.38/2,658.92 = 1,129.88/x
3. Step 3: Cross multiply
   1,926.38x = 2,658.92 × 1,129.88
4. Step 4: Simplify right side
   1,926.38x = 3,004,241.59
5. Step 5: Solve for x
   x = 3,004,241.59/1,926.38
6. Step 6: Final answer
   x = 1,559.53