Finding the Fourth Proportional to 2,385.95, 3,292.59 and 1,338

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.95 : 3,292.59 = 1,338 : x
2. Step 2: Convert to fraction form
   2,385.95/3,292.59 = 1,338/x
3. Step 3: Cross multiply
   2,385.95x = 3,292.59 × 1,338
4. Step 4: Simplify right side
   2,385.95x = 4,405,485.42
5. Step 5: Solve for x
   x = 4,405,485.42/2,385.95
6. Step 6: Final answer
   x = 1,846.43