Finding the Fourth Proportional to 1,081.34, 1,487.52 and 947.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.34 : 1,487.52 = 947.96 : x
2. Step 2: Convert to fraction form
   1,081.34/1,487.52 = 947.96/x
3. Step 3: Cross multiply
   1,081.34x = 1,487.52 × 947.96
4. Step 4: Simplify right side
   1,081.34x = 1,410,102.02
5. Step 5: Solve for x
   x = 1,410,102.02/1,081.34
6. Step 6: Final answer
   x = 1,304.04