Finding the Fourth Proportional to 1,012,145.73, 1,396,760.96 and 553,262.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,145.73 : 1,396,760.96 = 553,262.15 : x
2. Step 2: Convert to fraction form
   1,012,145.73/1,396,760.96 = 553,262.15/x
3. Step 3: Cross multiply
   1,012,145.73x = 1,396,760.96 × 553,262.15
4. Step 4: Simplify right side
   1,012,145.73x = 772,774,968,783.94
5. Step 5: Solve for x
   x = 772,774,968,783.94/1,012,145.73
6. Step 6: Final answer
   x = 763,501.69