Finding the Fourth Proportional to 2,187.82, 3,281.79 and 707.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.82 : 3,281.79 = 707.00 : x
2. Step 2: Convert to fraction form
   2,187.82/3,281.79 = 707.00/x
3. Step 3: Cross multiply
   2,187.82x = 3,281.79 × 707.00
4. Step 4: Simplify right side
   2,187.82x = 2,320,216.71
5. Step 5: Solve for x
   x = 2,320,216.71/2,187.82
6. Step 6: Final answer
   x = 1,060.52