Finding the Fourth Proportional to 1,708,259.30, 2,561,222.55 and 810,131.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708,259.30 : 2,561,222.55 = 810,131.30 : x
2. Step 2: Convert to fraction form
   1,708,259.30/2,561,222.55 = 810,131.30/x
3. Step 3: Cross multiply
   1,708,259.30x = 2,561,222.55 × 810,131.30
4. Step 4: Simplify right side
   1,708,259.30x = 2,074,926,554,020.82
5. Step 5: Solve for x
   x = 2,074,926,554,020.82/1,708,259.30
6. Step 6: Final answer
   x = 1,214,643.79