Finding the Fourth Proportional to 2,308,300.19, 3,185,619.21 and 1,275,785.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,300.19 : 3,185,619.21 = 1,275,785.76 : x
2. Step 2: Convert to fraction form
   2,308,300.19/3,185,619.21 = 1,275,785.76/x
3. Step 3: Cross multiply
   2,308,300.19x = 3,185,619.21 × 1,275,785.76
4. Step 4: Simplify right side
   2,308,300.19x = 4,064,167,624,900.45
5. Step 5: Solve for x
   x = 4,064,167,624,900.45/2,308,300.19
6. Step 6: Final answer
   x = 1,760,675.52