Finding the Fourth Proportional to 2,870.50, 3,961.38 and 1,692.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.50 : 3,961.38 = 1,692.58 : x
2. Step 2: Convert to fraction form
   2,870.50/3,961.38 = 1,692.58/x
3. Step 3: Cross multiply
   2,870.50x = 3,961.38 × 1,692.58
4. Step 4: Simplify right side
   2,870.50x = 6,704,952.56
5. Step 5: Solve for x
   x = 6,704,952.56/2,870.50
6. Step 6: Final answer
   x = 2,335.81