Finding the Fourth Proportional to 827,019.99, 1,141,721.06 and 556,510.23

Step by Step Solution

1. Step 1: Write the proportion equation
   827,019.99 : 1,141,721.06 = 556,510.23 : x
2. Step 2: Convert to fraction form
   827,019.99/1,141,721.06 = 556,510.23/x
3. Step 3: Cross multiply
   827,019.99x = 1,141,721.06 × 556,510.23
4. Step 4: Simplify right side
   827,019.99x = 635,379,446,913.89
5. Step 5: Solve for x
   x = 635,379,446,913.89/827,019.99
6. Step 6: Final answer
   x = 768,275.80