Finding the Fourth Proportional to 1,303,588.27, 1,798,921.06 and 722,808.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303,588.27 : 1,798,921.06 = 722,808.55 : x
2. Step 2: Convert to fraction form
   1,303,588.27/1,798,921.06 = 722,808.55/x
3. Step 3: Cross multiply
   1,303,588.27x = 1,798,921.06 × 722,808.55
4. Step 4: Simplify right side
   1,303,588.27x = 1,300,275,522,943.06
5. Step 5: Solve for x
   x = 1,300,275,522,943.06/1,303,588.27
6. Step 6: Final answer
   x = 997,458.75