Finding the Fourth Proportional to 1,444.56, 1,994.40 and 947.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.56 : 1,994.40 = 947.92 : x
2. Step 2: Convert to fraction form
   1,444.56/1,994.40 = 947.92/x
3. Step 3: Cross multiply
   1,444.56x = 1,994.40 × 947.92
4. Step 4: Simplify right side
   1,444.56x = 1,890,531.65
5. Step 5: Solve for x
   x = 1,890,531.65/1,444.56
6. Step 6: Final answer
   x = 1,308.72