Finding the Fourth Proportional to 1,185,561.47, 1,778,343.49 and 554,918.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,561.47 : 1,778,343.49 = 554,918.15 : x
2. Step 2: Convert to fraction form
   1,185,561.47/1,778,343.49 = 554,918.15/x
3. Step 3: Cross multiply
   1,185,561.47x = 1,778,343.49 × 554,918.15
4. Step 4: Simplify right side
   1,185,561.47x = 986,835,079,535.34
5. Step 5: Solve for x
   x = 986,835,079,535.34/1,185,561.47
6. Step 6: Final answer
   x = 832,377.83