Finding the Fourth Proportional to 2,476.78, 3,417.78 and 1,816.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476.78 : 3,417.78 = 1,816.42 : x
2. Step 2: Convert to fraction form
   2,476.78/3,417.78 = 1,816.42/x
3. Step 3: Cross multiply
   2,476.78x = 3,417.78 × 1,816.42
4. Step 4: Simplify right side
   2,476.78x = 6,208,123.95
5. Step 5: Solve for x
   x = 6,208,123.95/2,476.78
6. Step 6: Final answer
   x = 2,506.53