Finding the Fourth Proportional to 2,308,129.64, 3,185,340.00 and 1,390,646.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,129.64 : 3,185,340.00 = 1,390,646.69 : x
2. Step 2: Convert to fraction form
   2,308,129.64/3,185,340.00 = 1,390,646.69/x
3. Step 3: Cross multiply
   2,308,129.64x = 3,185,340.00 × 1,390,646.69
4. Step 4: Simplify right side
   2,308,129.64x = 4,429,682,536,245.54
5. Step 5: Solve for x
   x = 4,429,682,536,245.54/2,308,129.64
6. Step 6: Final answer
   x = 1,919,165.39