Finding the Fourth Proportional to 1,456,111.17, 2,185,150.91 and 509,490.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456,111.17 : 2,185,150.91 = 509,490.09 : x
2. Step 2: Convert to fraction form
   1,456,111.17/2,185,150.91 = 509,490.09/x
3. Step 3: Cross multiply
   1,456,111.17x = 2,185,150.91 × 509,490.09
4. Step 4: Simplify right side
   1,456,111.17x = 1,113,312,731,252.03
5. Step 5: Solve for x
   x = 1,113,312,731,252.03/1,456,111.17
6. Step 6: Final answer
   x = 764,579.49