Finding the Fourth Proportional to 1,767.37, 2,438.85 and 981.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.37 : 2,438.85 = 981.31 : x
2. Step 2: Convert to fraction form
   1,767.37/2,438.85 = 981.31/x
3. Step 3: Cross multiply
   1,767.37x = 2,438.85 × 981.31
4. Step 4: Simplify right side
   1,767.37x = 2,393,267.89
5. Step 5: Solve for x
   x = 2,393,267.89/1,767.37
6. Step 6: Final answer
   x = 1,354.14