Finding the Fourth Proportional to 2,917.89, 4,373.81 and 1,665.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,917.89 : 4,373.81 = 1,665.81 : x
2. Step 2: Convert to fraction form
   2,917.89/4,373.81 = 1,665.81/x
3. Step 3: Cross multiply
   2,917.89x = 4,373.81 × 1,665.81
4. Step 4: Simplify right side
   2,917.89x = 7,285,928.11
5. Step 5: Solve for x
   x = 7,285,928.11/2,917.89
6. Step 6: Final answer
   x = 2,496.99