Finding the Fourth Proportional to 1,684.53, 2,323.89 and 985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684.53 : 2,323.89 = 985.50 : x
2. Step 2: Convert to fraction form
   1,684.53/2,323.89 = 985.50/x
3. Step 3: Cross multiply
   1,684.53x = 2,323.89 × 985.50
4. Step 4: Simplify right side
   1,684.53x = 2,290,193.60
5. Step 5: Solve for x
   x = 2,290,193.60/1,684.53
6. Step 6: Final answer
   x = 1,359.54