Finding the Fourth Proportional to 1,145,016.53, 1,580,061.08 and 635,686.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,016.53 : 1,580,061.08 = 635,686.10 : x
2. Step 2: Convert to fraction form
   1,145,016.53/1,580,061.08 = 635,686.10/x
3. Step 3: Cross multiply
   1,145,016.53x = 1,580,061.08 × 635,686.10
4. Step 4: Simplify right side
   1,145,016.53x = 1,004,422,854,628.25
5. Step 5: Solve for x
   x = 1,004,422,854,628.25/1,145,016.53
6. Step 6: Final answer
   x = 877,212.54