Finding the Fourth Proportional to 1,289.83, 1,779.98 and 700.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289.83 : 1,779.98 = 700.37 : x
2. Step 2: Convert to fraction form
   1,289.83/1,779.98 = 700.37/x
3. Step 3: Cross multiply
   1,289.83x = 1,779.98 × 700.37
4. Step 4: Simplify right side
   1,289.83x = 1,246,633.86
5. Step 5: Solve for x
   x = 1,246,633.86/1,289.83
6. Step 6: Final answer
   x = 966.51