Finding the Fourth Proportional to 2,185,874.10, 3,278,811.15 and 1,591,010.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185,874.10 : 3,278,811.15 = 1,591,010.10 : x
2. Step 2: Convert to fraction form
   2,185,874.10/3,278,811.15 = 1,591,010.10/x
3. Step 3: Cross multiply
   2,185,874.10x = 3,278,811.15 × 1,591,010.10
4. Step 4: Simplify right side
   2,185,874.10x = 5,216,621,655,642.62
5. Step 5: Solve for x
   x = 5,216,621,655,642.62/2,185,874.10
6. Step 6: Final answer
   x = 2,386,515.15