Finding the Fourth Proportional to 1,981.10, 2,971.56 and 940.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.10 : 2,971.56 = 940.34 : x
2. Step 2: Convert to fraction form
   1,981.10/2,971.56 = 940.34/x
3. Step 3: Cross multiply
   1,981.10x = 2,971.56 × 940.34
4. Step 4: Simplify right side
   1,981.10x = 2,794,276.73
5. Step 5: Solve for x
   x = 2,794,276.73/1,981.10
6. Step 6: Final answer
   x = 1,410.47