Finding the Fourth Proportional to 2,122.05, 3,181.53 and 1,427.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,122.05 : 3,181.53 = 1,427.00 : x
2. Step 2: Convert to fraction form
   2,122.05/3,181.53 = 1,427.00/x
3. Step 3: Cross multiply
   2,122.05x = 3,181.53 × 1,427.00
4. Step 4: Simplify right side
   2,122.05x = 4,540,032.75
5. Step 5: Solve for x
   x = 4,540,032.75/2,122.05
6. Step 6: Final answer
   x = 2,139.45