Finding the Fourth Proportional to 1,035,112, 1,552,668.72 and 287,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035,112 : 1,552,668.72 = 287,158.72 : x
2. Step 2: Convert to fraction form
   1,035,112/1,552,668.72 = 287,158.72/x
3. Step 3: Cross multiply
   1,035,112x = 1,552,668.72 × 287,158.72
4. Step 4: Simplify right side
   1,035,112x = 445,862,362,219.24
5. Step 5: Solve for x
   x = 445,862,362,219.24/1,035,112
6. Step 6: Final answer
   x = 430,738.28