Finding the Fourth Proportional to 1,649.55, 2,470.31 and 908.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,649.55 : 2,470.31 = 908.03 : x
2. Step 2: Convert to fraction form
   1,649.55/2,470.31 = 908.03/x
3. Step 3: Cross multiply
   1,649.55x = 2,470.31 × 908.03
4. Step 4: Simplify right side
   1,649.55x = 2,243,111.84
5. Step 5: Solve for x
   x = 2,243,111.84/1,649.55
6. Step 6: Final answer
   x = 1,359.83