Finding the Fourth Proportional to 1,228,665.00, 1,843,827.86 and 429,953.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228,665.00 : 1,843,827.86 = 429,953.47 : x
2. Step 2: Convert to fraction form
   1,228,665.00/1,843,827.86 = 429,953.47/x
3. Step 3: Cross multiply
   1,228,665.00x = 1,843,827.86 × 429,953.47
4. Step 4: Simplify right side
   1,228,665.00x = 792,760,180,536.50
5. Step 5: Solve for x
   x = 792,760,180,536.50/1,228,665.00
6. Step 6: Final answer
   x = 645,220.77