Finding the Fourth Proportional to 978.06, 1,467.40 and 670.52

Step by Step Solution

1. Step 1: Write the proportion equation
   978.06 : 1,467.40 = 670.52 : x
2. Step 2: Convert to fraction form
   978.06/1,467.40 = 670.52/x
3. Step 3: Cross multiply
   978.06x = 1,467.40 × 670.52
4. Step 4: Simplify right side
   978.06x = 983,921.05
5. Step 5: Solve for x
   x = 983,921.05/978.06
6. Step 6: Final answer
   x = 1,005.99