Finding the Fourth Proportional to 2,524.60, 3,483.91 and 1,405.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,524.60 : 3,483.91 = 1,405.55 : x
2. Step 2: Convert to fraction form
   2,524.60/3,483.91 = 1,405.55/x
3. Step 3: Cross multiply
   2,524.60x = 3,483.91 × 1,405.55
4. Step 4: Simplify right side
   2,524.60x = 4,896,820.17
5. Step 5: Solve for x
   x = 4,896,820.17/2,524.60
6. Step 6: Final answer
   x = 1,939.64