Finding the Fourth Proportional to 1,550.79, 2,321.32 and 882.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.79 : 2,321.32 = 882.81 : x
2. Step 2: Convert to fraction form
   1,550.79/2,321.32 = 882.81/x
3. Step 3: Cross multiply
   1,550.79x = 2,321.32 × 882.81
4. Step 4: Simplify right side
   1,550.79x = 2,049,284.51
5. Step 5: Solve for x
   x = 2,049,284.51/1,550.79
6. Step 6: Final answer
   x = 1,321.45