Finding the Fourth Proportional to 1,327,196.12, 1,981,105.15 and 1,138,866.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,327,196.12 : 1,981,105.15 = 1,138,866.72 : x
2. Step 2: Convert to fraction form
   1,327,196.12/1,981,105.15 = 1,138,866.72/x
3. Step 3: Cross multiply
   1,327,196.12x = 1,981,105.15 × 1,138,866.72
4. Step 4: Simplify right side
   1,327,196.12x = 2,256,214,718,800.50
5. Step 5: Solve for x
   x = 2,256,214,718,800.50/1,327,196.12
6. Step 6: Final answer
   x = 1,699,985.92