Finding the Fourth Proportional to 2,085.48, 3,130.38 and 1,535.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.48 : 3,130.38 = 1,535.85 : x
2. Step 2: Convert to fraction form
   2,085.48/3,130.38 = 1,535.85/x
3. Step 3: Cross multiply
   2,085.48x = 3,130.38 × 1,535.85
4. Step 4: Simplify right side
   2,085.48x = 4,807,794.12
5. Step 5: Solve for x
   x = 4,807,794.12/2,085.48
6. Step 6: Final answer
   x = 2,305.37