Finding the Fourth Proportional to 3,941.32, 5,910.72 and 1,860.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941.32 : 5,910.72 = 1,860.07 : x
2. Step 2: Convert to fraction form
   3,941.32/5,910.72 = 1,860.07/x
3. Step 3: Cross multiply
   3,941.32x = 5,910.72 × 1,860.07
4. Step 4: Simplify right side
   3,941.32x = 10,994,352.95
5. Step 5: Solve for x
   x = 10,994,352.95/3,941.32
6. Step 6: Final answer
   x = 2,789.51