Finding the Fourth Proportional to 1,479.33, 2,039.72 and 981.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.33 : 2,039.72 = 981.18 : x
2. Step 2: Convert to fraction form
   1,479.33/2,039.72 = 981.18/x
3. Step 3: Cross multiply
   1,479.33x = 2,039.72 × 981.18
4. Step 4: Simplify right side
   1,479.33x = 2,001,327.56
5. Step 5: Solve for x
   x = 2,001,327.56/1,479.33
6. Step 6: Final answer
   x = 1,352.86