Finding the Fourth Proportional to 1,704.86, 2,353.50 and 1,285.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,704.86 : 2,353.50 = 1,285.39 : x
2. Step 2: Convert to fraction form
   1,704.86/2,353.50 = 1,285.39/x
3. Step 3: Cross multiply
   1,704.86x = 2,353.50 × 1,285.39
4. Step 4: Simplify right side
   1,704.86x = 3,025,159.48
5. Step 5: Solve for x
   x = 3,025,159.48/1,704.86
6. Step 6: Final answer
   x = 1,774.43