Finding the Fourth Proportional to 2,308,291.20, 3,185,606.76 and 1,275,776.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,291.20 : 3,185,606.76 = 1,275,776.76 : x
2. Step 2: Convert to fraction form
   2,308,291.20/3,185,606.76 = 1,275,776.76/x
3. Step 3: Cross multiply
   2,308,291.20x = 3,185,606.76 × 1,275,776.76
4. Step 4: Simplify right side
   2,308,291.20x = 4,064,123,070,906.90
5. Step 5: Solve for x
   x = 4,064,123,070,906.90/2,308,291.20
6. Step 6: Final answer
   x = 1,760,663.07