Finding the Fourth Proportional to 3,592.86, 5,386.78 and 1,399.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,592.86 : 5,386.78 = 1,399.02 : x
2. Step 2: Convert to fraction form
   3,592.86/5,386.78 = 1,399.02/x
3. Step 3: Cross multiply
   3,592.86x = 5,386.78 × 1,399.02
4. Step 4: Simplify right side
   3,592.86x = 7,536,212.96
5. Step 5: Solve for x
   x = 7,536,212.96/3,592.86
6. Step 6: Final answer
   x = 2,097.55