Finding the Fourth Proportional to 3,036.94, 4,190.06 and 1,856.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,036.94 : 4,190.06 = 1,856.78 : x
2. Step 2: Convert to fraction form
   3,036.94/4,190.06 = 1,856.78/x
3. Step 3: Cross multiply
   3,036.94x = 4,190.06 × 1,856.78
4. Step 4: Simplify right side
   3,036.94x = 7,780,019.61
5. Step 5: Solve for x
   x = 7,780,019.61/3,036.94
6. Step 6: Final answer
   x = 2,561.80