Finding the Fourth Proportional to 1,155,093.78, 1,593,389.61 and 671,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,093.78 : 1,593,389.61 = 671,605.50 : x
2. Step 2: Convert to fraction form
   1,155,093.78/1,593,389.61 = 671,605.50/x
3. Step 3: Cross multiply
   1,155,093.78x = 1,593,389.61 × 671,605.50
4. Step 4: Simplify right side
   1,155,093.78x = 1,070,129,225,718.86
5. Step 5: Solve for x
   x = 1,070,129,225,718.86/1,155,093.78
6. Step 6: Final answer
   x = 926,443.59