Finding the Fourth Proportional to 1,025.10, 1,416.15 and 947.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.10 : 1,416.15 = 947.34 : x
2. Step 2: Convert to fraction form
   1,025.10/1,416.15 = 947.34/x
3. Step 3: Cross multiply
   1,025.10x = 1,416.15 × 947.34
4. Step 4: Simplify right side
   1,025.10x = 1,341,575.54
5. Step 5: Solve for x
   x = 1,341,575.54/1,025.10
6. Step 6: Final answer
   x = 1,308.73