Finding the Fourth Proportional to 2,900.10, 4,341.55 and 1,911.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.10 : 4,341.55 = 1,911.05 : x
2. Step 2: Convert to fraction form
   2,900.10/4,341.55 = 1,911.05/x
3. Step 3: Cross multiply
   2,900.10x = 4,341.55 × 1,911.05
4. Step 4: Simplify right side
   2,900.10x = 8,296,924.72
5. Step 5: Solve for x
   x = 8,296,924.72/2,900.10
6. Step 6: Final answer
   x = 2,860.91