Finding the Fourth Proportional to 1,846.56, 2,770.72 and 872.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,846.56 : 2,770.72 = 872.96 : x
2. Step 2: Convert to fraction form
   1,846.56/2,770.72 = 872.96/x
3. Step 3: Cross multiply
   1,846.56x = 2,770.72 × 872.96
4. Step 4: Simplify right side
   1,846.56x = 2,418,727.73
5. Step 5: Solve for x
   x = 2,418,727.73/1,846.56
6. Step 6: Final answer
   x = 1,309.86