Finding the Fourth Proportional to 1,610.12, 2,222.00 and 947.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.12 : 2,222.00 = 947.00 : x
2. Step 2: Convert to fraction form
   1,610.12/2,222.00 = 947.00/x
3. Step 3: Cross multiply
   1,610.12x = 2,222.00 × 947.00
4. Step 4: Simplify right side
   1,610.12x = 2,104,218.16
5. Step 5: Solve for x
   x = 2,104,218.16/1,610.12
6. Step 6: Final answer
   x = 1,306.87