Finding the Fourth Proportional to 3,499.42, 5,246.80 and 2,389.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499.42 : 5,246.80 = 2,389.18 : x
2. Step 2: Convert to fraction form
   3,499.42/5,246.80 = 2,389.18/x
3. Step 3: Cross multiply
   3,499.42x = 5,246.80 × 2,389.18
4. Step 4: Simplify right side
   3,499.42x = 12,535,530.53
5. Step 5: Solve for x
   x = 12,535,530.53/3,499.42
6. Step 6: Final answer
   x = 3,582.18