Finding the Fourth Proportional to 1,501.38, 2,072.93 and 978.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.38 : 2,072.93 = 978.33 : x
2. Step 2: Convert to fraction form
   1,501.38/2,072.93 = 978.33/x
3. Step 3: Cross multiply
   1,501.38x = 2,072.93 × 978.33
4. Step 4: Simplify right side
   1,501.38x = 2,028,001.69
5. Step 5: Solve for x
   x = 2,028,001.69/1,501.38
6. Step 6: Final answer
   x = 1,350.76