Finding the Fourth Proportional to 1,215,196.92, 1,821,405.42 and 740,828.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,196.92 : 1,821,405.42 = 740,828.52 : x
2. Step 2: Convert to fraction form
   1,215,196.92/1,821,405.42 = 740,828.52/x
3. Step 3: Cross multiply
   1,215,196.92x = 1,821,405.42 × 740,828.52
4. Step 4: Simplify right side
   1,215,196.92x = 1,349,349,081,618.58
5. Step 5: Solve for x
   x = 1,349,349,081,618.58/1,215,196.92
6. Step 6: Final answer
   x = 1,110,395.41