Finding the Fourth Proportional to 1,189,887.78, 1,782,928.83 and 1,069,034.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,887.78 : 1,782,928.83 = 1,069,034.10 : x
2. Step 2: Convert to fraction form
   1,189,887.78/1,782,928.83 = 1,069,034.10/x
3. Step 3: Cross multiply
   1,189,887.78x = 1,782,928.83 × 1,069,034.10
4. Step 4: Simplify right side
   1,189,887.78x = 1,906,011,717,143.10
5. Step 5: Solve for x
   x = 1,906,011,717,143.10/1,189,887.78
6. Step 6: Final answer
   x = 1,601,841.58