Finding the Fourth Proportional to 1,861.10, 2,770.39 and 1,833.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.10 : 2,770.39 = 1,833.42 : x
2. Step 2: Convert to fraction form
   1,861.10/2,770.39 = 1,833.42/x
3. Step 3: Cross multiply
   1,861.10x = 2,770.39 × 1,833.42
4. Step 4: Simplify right side
   1,861.10x = 5,079,288.43
5. Step 5: Solve for x
   x = 5,079,288.43/1,861.10
6. Step 6: Final answer
   x = 2,729.19