Finding the Fourth Proportional to 3,435.72, 5,156.04 and 2,572.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,435.72 : 5,156.04 = 2,572.32 : x
2. Step 2: Convert to fraction form
   3,435.72/5,156.04 = 2,572.32/x
3. Step 3: Cross multiply
   3,435.72x = 5,156.04 × 2,572.32
4. Step 4: Simplify right side
   3,435.72x = 13,262,984.81
5. Step 5: Solve for x
   x = 13,262,984.81/3,435.72
6. Step 6: Final answer
   x = 3,860.32