Finding the Fourth Proportional to 1,610.82, 2,222.48 and 981.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.82 : 2,222.48 = 981.37 : x
2. Step 2: Convert to fraction form
   1,610.82/2,222.48 = 981.37/x
3. Step 3: Cross multiply
   1,610.82x = 2,222.48 × 981.37
4. Step 4: Simplify right side
   1,610.82x = 2,181,075.20
5. Step 5: Solve for x
   x = 2,181,075.20/1,610.82
6. Step 6: Final answer
   x = 1,354.02