Finding the Fourth Proportional to 1,458,005.72, 2,012,049.15 and 813,426.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458,005.72 : 2,012,049.15 = 813,426.05 : x
2. Step 2: Convert to fraction form
   1,458,005.72/2,012,049.15 = 813,426.05/x
3. Step 3: Cross multiply
   1,458,005.72x = 2,012,049.15 × 813,426.05
4. Step 4: Simplify right side
   1,458,005.72x = 1,636,653,192,490.36
5. Step 5: Solve for x
   x = 1,636,653,192,490.36/1,458,005.72
6. Step 6: Final answer
   x = 1,122,528.65