Finding the Fourth Proportional to 7,061.21, 10,591.62 and 1,867.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.21 : 10,591.62 = 1,867.10 : x
2. Step 2: Convert to fraction form
   7,061.21/10,591.62 = 1,867.10/x
3. Step 3: Cross multiply
   7,061.21x = 10,591.62 × 1,867.10
4. Step 4: Simplify right side
   7,061.21x = 19,775,613.70
5. Step 5: Solve for x
   x = 19,775,613.70/7,061.21
6. Step 6: Final answer
   x = 2,800.60