Finding the Fourth Proportional to 1,152,191.98, 1,589,581.47 and 721,722.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,191.98 : 1,589,581.47 = 721,722.70 : x
2. Step 2: Convert to fraction form
   1,152,191.98/1,589,581.47 = 721,722.70/x
3. Step 3: Cross multiply
   1,152,191.98x = 1,589,581.47 × 721,722.70
4. Step 4: Simplify right side
   1,152,191.98x = 1,147,237,030,398.37
5. Step 5: Solve for x
   x = 1,147,237,030,398.37/1,152,191.98
6. Step 6: Final answer
   x = 995,699.55