Finding the Fourth Proportional to 2,485.58, 3,429.88 and 1,366.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.58 : 3,429.88 = 1,366.52 : x
2. Step 2: Convert to fraction form
   2,485.58/3,429.88 = 1,366.52/x
3. Step 3: Cross multiply
   2,485.58x = 3,429.88 × 1,366.52
4. Step 4: Simplify right side
   2,485.58x = 4,686,999.62
5. Step 5: Solve for x
   x = 4,686,999.62/2,485.58
6. Step 6: Final answer
   x = 1,885.68