Finding the Fourth Proportional to 1,478.83, 2,040.77 and 849.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478.83 : 2,040.77 = 849.31 : x
2. Step 2: Convert to fraction form
   1,478.83/2,040.77 = 849.31/x
3. Step 3: Cross multiply
   1,478.83x = 2,040.77 × 849.31
4. Step 4: Simplify right side
   1,478.83x = 1,733,246.37
5. Step 5: Solve for x
   x = 1,733,246.37/1,478.83
6. Step 6: Final answer
   x = 1,172.04