Finding the Fourth Proportional to 1,606.50, 2,216.61 and 943.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.50 : 2,216.61 = 943.38 : x
2. Step 2: Convert to fraction form
   1,606.50/2,216.61 = 943.38/x
3. Step 3: Cross multiply
   1,606.50x = 2,216.61 × 943.38
4. Step 4: Simplify right side
   1,606.50x = 2,091,105.54
5. Step 5: Solve for x
   x = 2,091,105.54/1,606.50
6. Step 6: Final answer
   x = 1,301.65