Finding the Fourth Proportional to 978,185.89, 1,349,974.79 and 542,646.24

Step by Step Solution

1. Step 1: Write the proportion equation
   978,185.89 : 1,349,974.79 = 542,646.24 : x
2. Step 2: Convert to fraction form
   978,185.89/1,349,974.79 = 542,646.24/x
3. Step 3: Cross multiply
   978,185.89x = 1,349,974.79 × 542,646.24
4. Step 4: Simplify right side
   978,185.89x = 732,558,743,888.29
5. Step 5: Solve for x
   x = 732,558,743,888.29/978,185.89
6. Step 6: Final answer
   x = 748,895.23