Finding the Fourth Proportional to 2,422.78, 3,343.98 and 1,538.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.78 : 3,343.98 = 1,538.42 : x
2. Step 2: Convert to fraction form
   2,422.78/3,343.98 = 1,538.42/x
3. Step 3: Cross multiply
   2,422.78x = 3,343.98 × 1,538.42
4. Step 4: Simplify right side
   2,422.78x = 5,144,445.71
5. Step 5: Solve for x
   x = 5,144,445.71/2,422.78
6. Step 6: Final answer
   x = 2,123.36