Finding the Fourth Proportional to 1,767.15, 2,438.69 and 981.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.15 : 2,438.69 = 981.24 : x
2. Step 2: Convert to fraction form
   1,767.15/2,438.69 = 981.24/x
3. Step 3: Cross multiply
   1,767.15x = 2,438.69 × 981.24
4. Step 4: Simplify right side
   1,767.15x = 2,392,940.18
5. Step 5: Solve for x
   x = 2,392,940.18/1,767.15
6. Step 6: Final answer
   x = 1,354.12