Finding the Fourth Proportional to 1,501.52, 2,073.12 and 978.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.52 : 2,073.12 = 978.44 : x
2. Step 2: Convert to fraction form
   1,501.52/2,073.12 = 978.44/x
3. Step 3: Cross multiply
   1,501.52x = 2,073.12 × 978.44
4. Step 4: Simplify right side
   1,501.52x = 2,028,423.53
5. Step 5: Solve for x
   x = 2,028,423.53/1,501.52
6. Step 6: Final answer
   x = 1,350.91