Finding the Fourth Proportional to 785,485, 1,083,969.30 and 427,789

Step by Step Solution

1. Step 1: Write the proportion equation
   785,485 : 1,083,969.30 = 427,789 : x
2. Step 2: Convert to fraction form
   785,485/1,083,969.30 = 427,789/x
3. Step 3: Cross multiply
   785,485x = 1,083,969.30 × 427,789
4. Step 4: Simplify right side
   785,485x = 463,710,142,877.70
5. Step 5: Solve for x
   x = 463,710,142,877.70/785,485
6. Step 6: Final answer
   x = 590,348.82