Finding the Fourth Proportional to 1,002,807.51, 1,504,063.58 and 328,960.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,807.51 : 1,504,063.58 = 328,960.01 : x
2. Step 2: Convert to fraction form
   1,002,807.51/1,504,063.58 = 328,960.01/x
3. Step 3: Cross multiply
   1,002,807.51x = 1,504,063.58 × 328,960.01
4. Step 4: Simplify right side
   1,002,807.51x = 494,776,761,152.32
5. Step 5: Solve for x
   x = 494,776,761,152.32/1,002,807.51
6. Step 6: Final answer
   x = 493,391.56