Finding the Fourth Proportional to 1,222,435.83, 1,833,238.51 and 423,530.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,435.83 : 1,833,238.51 = 423,530.88 : x
2. Step 2: Convert to fraction form
   1,222,435.83/1,833,238.51 = 423,530.88/x
3. Step 3: Cross multiply
   1,222,435.83x = 1,833,238.51 × 423,530.88
4. Step 4: Simplify right side
   1,222,435.83x = 776,433,111,456.72
5. Step 5: Solve for x
   x = 776,433,111,456.72/1,222,435.83
6. Step 6: Final answer
   x = 635,152.45