Finding the Fourth Proportional to 2,909.40, 4,365.89 and 1,154.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,909.40 : 4,365.89 = 1,154.10 : x
2. Step 2: Convert to fraction form
   2,909.40/4,365.89 = 1,154.10/x
3. Step 3: Cross multiply
   2,909.40x = 4,365.89 × 1,154.10
4. Step 4: Simplify right side
   2,909.40x = 5,038,688.58
5. Step 5: Solve for x
   x = 5,038,688.58/2,909.40
6. Step 6: Final answer
   x = 1,731.87