Finding the Fourth Proportional to 2,405.57, 3,612.47 and 1,486.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.57 : 3,612.47 = 1,486.55 : x
2. Step 2: Convert to fraction form
   2,405.57/3,612.47 = 1,486.55/x
3. Step 3: Cross multiply
   2,405.57x = 3,612.47 × 1,486.55
4. Step 4: Simplify right side
   2,405.57x = 5,370,118.88
5. Step 5: Solve for x
   x = 5,370,118.88/2,405.57
6. Step 6: Final answer
   x = 2,232.37