Finding the Fourth Proportional to 1,189,045.05, 1,784,150.78 and 558,010.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,045.05 : 1,784,150.78 = 558,010.17 : x
2. Step 2: Convert to fraction form
   1,189,045.05/1,784,150.78 = 558,010.17/x
3. Step 3: Cross multiply
   1,189,045.05x = 1,784,150.78 × 558,010.17
4. Step 4: Simplify right side
   1,189,045.05x = 995,574,287,092.75
5. Step 5: Solve for x
   x = 995,574,287,092.75/1,189,045.05
6. Step 6: Final answer
   x = 837,288.95