Finding the Fourth Proportional to 1,087,030.33, 1,500,145.01 and 628,129.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087,030.33 : 1,500,145.01 = 628,129.69 : x
2. Step 2: Convert to fraction form
   1,087,030.33/1,500,145.01 = 628,129.69/x
3. Step 3: Cross multiply
   1,087,030.33x = 1,500,145.01 × 628,129.69
4. Step 4: Simplify right side
   1,087,030.33x = 942,285,615,550.82
5. Step 5: Solve for x
   x = 942,285,615,550.82/1,087,030.33
6. Step 6: Final answer
   x = 866,843.91