Finding the Fourth Proportional to 1,510,487.77, 2,264,952.53 and 445,391.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510,487.77 : 2,264,952.53 = 445,391.43 : x
2. Step 2: Convert to fraction form
   1,510,487.77/2,264,952.53 = 445,391.43/x
3. Step 3: Cross multiply
   1,510,487.77x = 2,264,952.53 × 445,391.43
4. Step 4: Simplify right side
   1,510,487.77x = 1,008,790,432,667.10
5. Step 5: Solve for x
   x = 1,008,790,432,667.10/1,510,487.77
6. Step 6: Final answer
   x = 667,857.40