Finding the Fourth Proportional to 765,877.98, 1,057,053.34 and 443,588.00

Step by Step Solution

1. Step 1: Write the proportion equation
   765,877.98 : 1,057,053.34 = 443,588.00 : x
2. Step 2: Convert to fraction form
   765,877.98/1,057,053.34 = 443,588.00/x
3. Step 3: Cross multiply
   765,877.98x = 1,057,053.34 × 443,588.00
4. Step 4: Simplify right side
   765,877.98x = 468,896,172,253.14
5. Step 5: Solve for x
   x = 468,896,172,253.14/765,877.98
6. Step 6: Final answer
   x = 612,233.52