Finding the Fourth Proportional to 1,610.51, 2,222.69 and 981.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.51 : 2,222.69 = 981.41 : x
2. Step 2: Convert to fraction form
   1,610.51/2,222.69 = 981.41/x
3. Step 3: Cross multiply
   1,610.51x = 2,222.69 × 981.41
4. Step 4: Simplify right side
   1,610.51x = 2,181,370.19
5. Step 5: Solve for x
   x = 2,181,370.19/1,610.51
6. Step 6: Final answer
   x = 1,354.46