Finding the Fourth Proportional to 2,085.73, 2,875.94 and 1,560.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.73 : 2,875.94 = 1,560.85 : x
2. Step 2: Convert to fraction form
   2,085.73/2,875.94 = 1,560.85/x
3. Step 3: Cross multiply
   2,085.73x = 2,875.94 × 1,560.85
4. Step 4: Simplify right side
   2,085.73x = 4,488,901.81
5. Step 5: Solve for x
   x = 4,488,901.81/2,085.73
6. Step 6: Final answer
   x = 2,152.20