Finding the Fourth Proportional to 3,730.68, 5,592.72 and 1,420.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,730.68 : 5,592.72 = 1,420.56 : x
2. Step 2: Convert to fraction form
   3,730.68/5,592.72 = 1,420.56/x
3. Step 3: Cross multiply
   3,730.68x = 5,592.72 × 1,420.56
4. Step 4: Simplify right side
   3,730.68x = 7,944,794.32
5. Step 5: Solve for x
   x = 7,944,794.32/3,730.68
6. Step 6: Final answer
   x = 2,129.58