Finding the Fourth Proportional to 1,767.48, 2,439.18 and 981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.48 : 2,439.18 = 981.50 : x
2. Step 2: Convert to fraction form
   1,767.48/2,439.18 = 981.50/x
3. Step 3: Cross multiply
   1,767.48x = 2,439.18 × 981.50
4. Step 4: Simplify right side
   1,767.48x = 2,394,055.17
5. Step 5: Solve for x
   x = 2,394,055.17/1,767.48
6. Step 6: Final answer
   x = 1,354.50