Finding the Fourth Proportional to 2,308,499.70, 3,185,726.67 and 1,289,904.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,499.70 : 3,185,726.67 = 1,289,904.45 : x
2. Step 2: Convert to fraction form
   2,308,499.70/3,185,726.67 = 1,289,904.45/x
3. Step 3: Cross multiply
   2,308,499.70x = 3,185,726.67 × 1,289,904.45
4. Step 4: Simplify right side
   2,308,499.70x = 4,109,283,008,116.68
5. Step 5: Solve for x
   x = 4,109,283,008,116.68/2,308,499.70
6. Step 6: Final answer
   x = 1,780,066.51