Finding the Fourth Proportional to 2,926.54, 4,389.71 and 1,171.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,926.54 : 4,389.71 = 1,171.07 : x
2. Step 2: Convert to fraction form
   2,926.54/4,389.71 = 1,171.07/x
3. Step 3: Cross multiply
   2,926.54x = 4,389.71 × 1,171.07
4. Step 4: Simplify right side
   2,926.54x = 5,140,651.83
5. Step 5: Solve for x
   x = 5,140,651.83/2,926.54
6. Step 6: Final answer
   x = 1,756.57