Finding the Fourth Proportional to 1,367.50, 2,051.52 and 698.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.50 : 2,051.52 = 698.71 : x
2. Step 2: Convert to fraction form
   1,367.50/2,051.52 = 698.71/x
3. Step 3: Cross multiply
   1,367.50x = 2,051.52 × 698.71
4. Step 4: Simplify right side
   1,367.50x = 1,433,417.54
5. Step 5: Solve for x
   x = 1,433,417.54/1,367.50
6. Step 6: Final answer
   x = 1,048.20