Finding the Fourth Proportional to 1,384,155.18, 2,074,964.31 and 485,106.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384,155.18 : 2,074,964.31 = 485,106.84 : x
2. Step 2: Convert to fraction form
   1,384,155.18/2,074,964.31 = 485,106.84/x
3. Step 3: Cross multiply
   1,384,155.18x = 2,074,964.31 × 485,106.84
4. Step 4: Simplify right side
   1,384,155.18x = 1,006,579,379,536.88
5. Step 5: Solve for x
   x = 1,006,579,379,536.88/1,384,155.18
6. Step 6: Final answer
   x = 727,215.70