Finding the Fourth Proportional to 1,068,490.24, 1,602,994.56 and 320,536.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068,490.24 : 1,602,994.56 = 320,536.24 : x
2. Step 2: Convert to fraction form
   1,068,490.24/1,602,994.56 = 320,536.24/x
3. Step 3: Cross multiply
   1,068,490.24x = 1,602,994.56 × 320,536.24
4. Step 4: Simplify right side
   1,068,490.24x = 513,817,849,002.85
5. Step 5: Solve for x
   x = 513,817,849,002.85/1,068,490.24
6. Step 6: Final answer
   x = 480,882.12