Finding the Fourth Proportional to 2,530.22, 3,487.89 and 1,969.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.22 : 3,487.89 = 1,969.70 : x
2. Step 2: Convert to fraction form
   2,530.22/3,487.89 = 1,969.70/x
3. Step 3: Cross multiply
   2,530.22x = 3,487.89 × 1,969.70
4. Step 4: Simplify right side
   2,530.22x = 6,870,069.65
5. Step 5: Solve for x
   x = 6,870,069.65/2,530.22
6. Step 6: Final answer
   x = 2,715.21