Finding the Fourth Proportional to 1,009,345.16, 1,393,112.50 and 579,862.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,345.16 : 1,393,112.50 = 579,862.10 : x
2. Step 2: Convert to fraction form
   1,009,345.16/1,393,112.50 = 579,862.10/x
3. Step 3: Cross multiply
   1,009,345.16x = 1,393,112.50 × 579,862.10
4. Step 4: Simplify right side
   1,009,345.16x = 807,813,139,786.25
5. Step 5: Solve for x
   x = 807,813,139,786.25/1,009,345.16
6. Step 6: Final answer
   x = 800,333.89