Finding the Fourth Proportional to 1,152,575.99, 1,724,582.21 and 724,105.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,575.99 : 1,724,582.21 = 724,105.76 : x
2. Step 2: Convert to fraction form
   1,152,575.99/1,724,582.21 = 724,105.76/x
3. Step 3: Cross multiply
   1,152,575.99x = 1,724,582.21 × 724,105.76
4. Step 4: Simplify right side
   1,152,575.99x = 1,248,779,899,611.09
5. Step 5: Solve for x
   x = 1,248,779,899,611.09/1,152,575.99
6. Step 6: Final answer
   x = 1,083,468.61