Finding the Fourth Proportional to 1,649.83, 2,276.79 and 903.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,649.83 : 2,276.79 = 903.86 : x
2. Step 2: Convert to fraction form
   1,649.83/2,276.79 = 903.86/x
3. Step 3: Cross multiply
   1,649.83x = 2,276.79 × 903.86
4. Step 4: Simplify right side
   1,649.83x = 2,057,896.56
5. Step 5: Solve for x
   x = 2,057,896.56/1,649.83
6. Step 6: Final answer
   x = 1,247.34