Finding the Fourth Proportional to 2,903.79, 4,003.32 and 1,908.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,903.79 : 4,003.32 = 1,908.69 : x
2. Step 2: Convert to fraction form
   2,903.79/4,003.32 = 1,908.69/x
3. Step 3: Cross multiply
   2,903.79x = 4,003.32 × 1,908.69
4. Step 4: Simplify right side
   2,903.79x = 7,641,096.85
5. Step 5: Solve for x
   x = 7,641,096.85/2,903.79
6. Step 6: Final answer
   x = 2,631.42