Finding the Fourth Proportional to 1,767.39, 2,438.89 and 970.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.39 : 2,438.89 = 970.56 : x
2. Step 2: Convert to fraction form
   1,767.39/2,438.89 = 970.56/x
3. Step 3: Cross multiply
   1,767.39x = 2,438.89 × 970.56
4. Step 4: Simplify right side
   1,767.39x = 2,367,089.08
5. Step 5: Solve for x
   x = 2,367,089.08/1,767.39
6. Step 6: Final answer
   x = 1,339.31