Finding the Fourth Proportional to 2,422.72, 3,342.84 and 1,427.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.72 : 3,342.84 = 1,427.63 : x
2. Step 2: Convert to fraction form
   2,422.72/3,342.84 = 1,427.63/x
3. Step 3: Cross multiply
   2,422.72x = 3,342.84 × 1,427.63
4. Step 4: Simplify right side
   2,422.72x = 4,772,338.67
5. Step 5: Solve for x
   x = 4,772,338.67/2,422.72
6. Step 6: Final answer
   x = 1,969.83