Finding the Fourth Proportional to 1,155,078.56, 1,724,157.52 and 1,018,726.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,078.56 : 1,724,157.52 = 1,018,726.40 : x
2. Step 2: Convert to fraction form
   1,155,078.56/1,724,157.52 = 1,018,726.40/x
3. Step 3: Cross multiply
   1,155,078.56x = 1,724,157.52 × 1,018,726.40
4. Step 4: Simplify right side
   1,155,078.56x = 1,756,444,783,382.53
5. Step 5: Solve for x
   x = 1,756,444,783,382.53/1,155,078.56
6. Step 6: Final answer
   x = 1,520,627.99