Finding the Fourth Proportional to 1,027,085.49, 1,417,123.31 and 664,072.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,027,085.49 : 1,417,123.31 = 664,072.53 : x
2. Step 2: Convert to fraction form
   1,027,085.49/1,417,123.31 = 664,072.53/x
3. Step 3: Cross multiply
   1,027,085.49x = 1,417,123.31 × 664,072.53
4. Step 4: Simplify right side
   1,027,085.49x = 941,072,661,793.67
5. Step 5: Solve for x
   x = 941,072,661,793.67/1,027,085.49
6. Step 6: Final answer
   x = 916,255.43