Finding the Fourth Proportional to 3,892.60, 5,837.32 and 1,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.60 : 5,837.32 = 1,426.72 : x
2. Step 2: Convert to fraction form
   3,892.60/5,837.32 = 1,426.72/x
3. Step 3: Cross multiply
   3,892.60x = 5,837.32 × 1,426.72
4. Step 4: Simplify right side
   3,892.60x = 8,328,221.19
5. Step 5: Solve for x
   x = 8,328,221.19/3,892.60
6. Step 6: Final answer
   x = 2,139.50