Finding the Fourth Proportional to 2,555.51, 3,834.61 and 1,939.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.51 : 3,834.61 = 1,939.05 : x
2. Step 2: Convert to fraction form
   2,555.51/3,834.61 = 1,939.05/x
3. Step 3: Cross multiply
   2,555.51x = 3,834.61 × 1,939.05
4. Step 4: Simplify right side
   2,555.51x = 7,435,495.67
5. Step 5: Solve for x
   x = 7,435,495.67/2,555.51
6. Step 6: Final answer
   x = 2,909.60