Finding the Fourth Proportional to 1,267.34, 1,749.30 and 801.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267.34 : 1,749.30 = 801.86 : x
2. Step 2: Convert to fraction form
   1,267.34/1,749.30 = 801.86/x
3. Step 3: Cross multiply
   1,267.34x = 1,749.30 × 801.86
4. Step 4: Simplify right side
   1,267.34x = 1,402,693.70
5. Step 5: Solve for x
   x = 1,402,693.70/1,267.34
6. Step 6: Final answer
   x = 1,106.80