Finding the Fourth Proportional to 3,145,105.90, 4,338,472.72 and 1,887,471.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,145,105.90 : 4,338,472.72 = 1,887,471.76 : x
2. Step 2: Convert to fraction form
   3,145,105.90/4,338,472.72 = 1,887,471.76/x
3. Step 3: Cross multiply
   3,145,105.90x = 4,338,472.72 × 1,887,471.76
4. Step 4: Simplify right side
   3,145,105.90x = 8,188,744,740,530.39
5. Step 5: Solve for x
   x = 8,188,744,740,530.39/3,145,105.90
6. Step 6: Final answer
   x = 2,603,646.75