Finding the Fourth Proportional to 1,610.73, 2,222.77 and 947.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.73 : 2,222.77 = 947.43 : x
2. Step 2: Convert to fraction form
   1,610.73/2,222.77 = 947.43/x
3. Step 3: Cross multiply
   1,610.73x = 2,222.77 × 947.43
4. Step 4: Simplify right side
   1,610.73x = 2,105,914.24
5. Step 5: Solve for x
   x = 2,105,914.24/1,610.73
6. Step 6: Final answer
   x = 1,307.43