Finding the Fourth Proportional to 1,016.94, 1,528.40 and 844.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.94 : 1,528.40 = 844.72 : x
2. Step 2: Convert to fraction form
   1,016.94/1,528.40 = 844.72/x
3. Step 3: Cross multiply
   1,016.94x = 1,528.40 × 844.72
4. Step 4: Simplify right side
   1,016.94x = 1,291,070.05
5. Step 5: Solve for x
   x = 1,291,070.05/1,016.94
6. Step 6: Final answer
   x = 1,269.56