Finding the Fourth Proportional to 1,054,123.09, 1,454,672.49 and 570,684.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054,123.09 : 1,454,672.49 = 570,684.31 : x
2. Step 2: Convert to fraction form
   1,054,123.09/1,454,672.49 = 570,684.31/x
3. Step 3: Cross multiply
   1,054,123.09x = 1,454,672.49 × 570,684.31
4. Step 4: Simplify right side
   1,054,123.09x = 830,158,760,454.89
5. Step 5: Solve for x
   x = 830,158,760,454.89/1,054,123.09
6. Step 6: Final answer
   x = 787,534.94