Finding the Fourth Proportional to 1,290.83, 1,781.32 and 701.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290.83 : 1,781.32 = 701.37 : x
2. Step 2: Convert to fraction form
   1,290.83/1,781.32 = 701.37/x
3. Step 3: Cross multiply
   1,290.83x = 1,781.32 × 701.37
4. Step 4: Simplify right side
   1,290.83x = 1,249,362.65
5. Step 5: Solve for x
   x = 1,249,362.65/1,290.83
6. Step 6: Final answer
   x = 967.88