Finding the Fourth Proportional to 909,036.57, 1,254,479.15 and 501,153.33

Step by Step Solution

1. Step 1: Write the proportion equation
   909,036.57 : 1,254,479.15 = 501,153.33 : x
2. Step 2: Convert to fraction form
   909,036.57/1,254,479.15 = 501,153.33/x
3. Step 3: Cross multiply
   909,036.57x = 1,254,479.15 × 501,153.33
4. Step 4: Simplify right side
   909,036.57x = 628,686,399,519.82
5. Step 5: Solve for x
   x = 628,686,399,519.82/909,036.57
6. Step 6: Final answer
   x = 691,596.38