Finding the Fourth Proportional to 1,167.06, 1,751.71 and 838.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.06 : 1,751.71 = 838.34 : x
2. Step 2: Convert to fraction form
   1,167.06/1,751.71 = 838.34/x
3. Step 3: Cross multiply
   1,167.06x = 1,751.71 × 838.34
4. Step 4: Simplify right side
   1,167.06x = 1,468,528.56
5. Step 5: Solve for x
   x = 1,468,528.56/1,167.06
6. Step 6: Final answer
   x = 1,258.31