Finding the Fourth Proportional to 978.32, 1,466.05 and 743.05

Step by Step Solution

1. Step 1: Write the proportion equation
   978.32 : 1,466.05 = 743.05 : x
2. Step 2: Convert to fraction form
   978.32/1,466.05 = 743.05/x
3. Step 3: Cross multiply
   978.32x = 1,466.05 × 743.05
4. Step 4: Simplify right side
   978.32x = 1,089,348.45
5. Step 5: Solve for x
   x = 1,089,348.45/978.32
6. Step 6: Final answer
   x = 1,113.49