Finding the Fourth Proportional to 1,479.56, 2,041.70 and 889.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.56 : 2,041.70 = 889.72 : x
2. Step 2: Convert to fraction form
   1,479.56/2,041.70 = 889.72/x
3. Step 3: Cross multiply
   1,479.56x = 2,041.70 × 889.72
4. Step 4: Simplify right side
   1,479.56x = 1,816,541.32
5. Step 5: Solve for x
   x = 1,816,541.32/1,479.56
6. Step 6: Final answer
   x = 1,227.76