Finding the Fourth Proportional to 3,500.55, 5,251.76 and 1,422.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,500.55 : 5,251.76 = 1,422.00 : x
2. Step 2: Convert to fraction form
   3,500.55/5,251.76 = 1,422.00/x
3. Step 3: Cross multiply
   3,500.55x = 5,251.76 × 1,422.00
4. Step 4: Simplify right side
   3,500.55x = 7,467,986.17
5. Step 5: Solve for x
   x = 7,467,986.17/3,500.55
6. Step 6: Final answer
   x = 2,133.38