Finding the Fourth Proportional to 2,056.86, 3,085.16 and 961.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.86 : 3,085.16 = 961.47 : x
2. Step 2: Convert to fraction form
   2,056.86/3,085.16 = 961.47/x
3. Step 3: Cross multiply
   2,056.86x = 3,085.16 × 961.47
4. Step 4: Simplify right side
   2,056.86x = 2,966,283.98
5. Step 5: Solve for x
   x = 2,966,283.98/2,056.86
6. Step 6: Final answer
   x = 1,442.14