Finding the Fourth Proportional to 1,983.30, 2,970.90 and 940.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.30 : 2,970.90 = 940.14 : x
2. Step 2: Convert to fraction form
   1,983.30/2,970.90 = 940.14/x
3. Step 3: Cross multiply
   1,983.30x = 2,970.90 × 940.14
4. Step 4: Simplify right side
   1,983.30x = 2,793,061.93
5. Step 5: Solve for x
   x = 2,793,061.93/1,983.30
6. Step 6: Final answer
   x = 1,408.29