Finding the Fourth Proportional to 3,968.17, 5,476.35 and 2,199.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.17 : 5,476.35 = 2,199.94 : x
2. Step 2: Convert to fraction form
   3,968.17/5,476.35 = 2,199.94/x
3. Step 3: Cross multiply
   3,968.17x = 5,476.35 × 2,199.94
4. Step 4: Simplify right side
   3,968.17x = 12,047,641.42
5. Step 5: Solve for x
   x = 12,047,641.42/3,968.17
6. Step 6: Final answer
   x = 3,036.07