Finding the Fourth Proportional to 1,138,155.76, 1,706,728.20 and 605,564.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,138,155.76 : 1,706,728.20 = 605,564.56 : x
2. Step 2: Convert to fraction form
   1,138,155.76/1,706,728.20 = 605,564.56/x
3. Step 3: Cross multiply
   1,138,155.76x = 1,706,728.20 × 605,564.56
4. Step 4: Simplify right side
   1,138,155.76x = 1,033,534,111,472.59
5. Step 5: Solve for x
   x = 1,033,534,111,472.59/1,138,155.76
6. Step 6: Final answer
   x = 908,077.92