Finding the Fourth Proportional to 3,692.32, 5,089.98 and 2,642.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,692.32 : 5,089.98 = 2,642.56 : x
2. Step 2: Convert to fraction form
   3,692.32/5,089.98 = 2,642.56/x
3. Step 3: Cross multiply
   3,692.32x = 5,089.98 × 2,642.56
4. Step 4: Simplify right side
   3,692.32x = 13,450,577.55
5. Step 5: Solve for x
   x = 13,450,577.55/3,692.32
6. Step 6: Final answer
   x = 3,642.85