Finding the Fourth Proportional to 1,309,374.72, 1,807,011.18 and 873,039.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,374.72 : 1,807,011.18 = 873,039.06 : x
2. Step 2: Convert to fraction form
   1,309,374.72/1,807,011.18 = 873,039.06/x
3. Step 3: Cross multiply
   1,309,374.72x = 1,807,011.18 × 873,039.06
4. Step 4: Simplify right side
   1,309,374.72x = 1,577,591,341,996.69
5. Step 5: Solve for x
   x = 1,577,591,341,996.69/1,309,374.72
6. Step 6: Final answer
   x = 1,204,843.29