Finding the Fourth Proportional to 1,693.47, 2,336.61 and 985.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.47 : 2,336.61 = 985.08 : x
2. Step 2: Convert to fraction form
   1,693.47/2,336.61 = 985.08/x
3. Step 3: Cross multiply
   1,693.47x = 2,336.61 × 985.08
4. Step 4: Simplify right side
   1,693.47x = 2,301,747.78
5. Step 5: Solve for x
   x = 2,301,747.78/1,693.47
6. Step 6: Final answer
   x = 1,359.19