Finding the Fourth Proportional to 1,823.46, 2,518.47 and 1,328.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823.46 : 2,518.47 = 1,328.31 : x
2. Step 2: Convert to fraction form
   1,823.46/2,518.47 = 1,328.31/x
3. Step 3: Cross multiply
   1,823.46x = 2,518.47 × 1,328.31
4. Step 4: Simplify right side
   1,823.46x = 3,345,308.89
5. Step 5: Solve for x
   x = 3,345,308.89/1,823.46
6. Step 6: Final answer
   x = 1,834.59