Finding the Fourth Proportional to 1,035,019.12, 1,552,528.56 and 287,065.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035,019.12 : 1,552,528.56 = 287,065.12 : x
2. Step 2: Convert to fraction form
   1,035,019.12/1,552,528.56 = 287,065.12/x
3. Step 3: Cross multiply
   1,035,019.12x = 1,552,528.56 × 287,065.12
4. Step 4: Simplify right side
   1,035,019.12x = 445,676,797,379.83
5. Step 5: Solve for x
   x = 445,676,797,379.83/1,035,019.12
6. Step 6: Final answer
   x = 430,597.65