Finding the Fourth Proportional to 2,150.59, 3,227.46 and 981.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.59 : 3,227.46 = 981.91 : x
2. Step 2: Convert to fraction form
   2,150.59/3,227.46 = 981.91/x
3. Step 3: Cross multiply
   2,150.59x = 3,227.46 × 981.91
4. Step 4: Simplify right side
   2,150.59x = 3,169,075.25
5. Step 5: Solve for x
   x = 3,169,075.25/2,150.59
6. Step 6: Final answer
   x = 1,473.58