Finding the Fourth Proportional to 2,185.83, 3,015.91 and 1,335.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.83 : 3,015.91 = 1,335.53 : x
2. Step 2: Convert to fraction form
   2,185.83/3,015.91 = 1,335.53/x
3. Step 3: Cross multiply
   2,185.83x = 3,015.91 × 1,335.53
4. Step 4: Simplify right side
   2,185.83x = 4,027,838.28
5. Step 5: Solve for x
   x = 4,027,838.28/2,185.83
6. Step 6: Final answer
   x = 1,842.70