Finding the Fourth Proportional to 1,444.78, 1,993.26 and 947.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.78 : 1,993.26 = 947.69 : x
2. Step 2: Convert to fraction form
   1,444.78/1,993.26 = 947.69/x
3. Step 3: Cross multiply
   1,444.78x = 1,993.26 × 947.69
4. Step 4: Simplify right side
   1,444.78x = 1,888,987.83
5. Step 5: Solve for x
   x = 1,888,987.83/1,444.78
6. Step 6: Final answer
   x = 1,307.46