Finding the Fourth Proportional to 2,422.63, 3,343.76 and 1,427.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.63 : 3,343.76 = 1,427.55 : x
2. Step 2: Convert to fraction form
   2,422.63/3,343.76 = 1,427.55/x
3. Step 3: Cross multiply
   2,422.63x = 3,343.76 × 1,427.55
4. Step 4: Simplify right side
   2,422.63x = 4,773,384.59
5. Step 5: Solve for x
   x = 4,773,384.59/2,422.63
6. Step 6: Final answer
   x = 1,970.33