Finding the Fourth Proportional to 1,657,362.89, 2,287,184.42 and 978,299.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,657,362.89 : 2,287,184.42 = 978,299.39 : x
2. Step 2: Convert to fraction form
   1,657,362.89/2,287,184.42 = 978,299.39/x
3. Step 3: Cross multiply
   1,657,362.89x = 2,287,184.42 × 978,299.39
4. Step 4: Simplify right side
   1,657,362.89x = 2,237,551,131,067.21
5. Step 5: Solve for x
   x = 2,237,551,131,067.21/1,657,362.89
6. Step 6: Final answer
   x = 1,350,067.11