Finding the Fourth Proportional to 3,861.42, 5,328.72 and 2,092.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,861.42 : 5,328.72 = 2,092.98 : x
2. Step 2: Convert to fraction form
   3,861.42/5,328.72 = 2,092.98/x
3. Step 3: Cross multiply
   3,861.42x = 5,328.72 × 2,092.98
4. Step 4: Simplify right side
   3,861.42x = 11,152,904.39
5. Step 5: Solve for x
   x = 11,152,904.39/3,861.42
6. Step 6: Final answer
   x = 2,888.29