Finding the Fourth Proportional to 1,267.32, 1,748.69 and 707.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267.32 : 1,748.69 = 707.76 : x
2. Step 2: Convert to fraction form
   1,267.32/1,748.69 = 707.76/x
3. Step 3: Cross multiply
   1,267.32x = 1,748.69 × 707.76
4. Step 4: Simplify right side
   1,267.32x = 1,237,648.05
5. Step 5: Solve for x
   x = 1,237,648.05/1,267.32
6. Step 6: Final answer
   x = 976.59