Finding the Fourth Proportional to 890,387.38, 1,228,269.77 and 546,300.06

Step by Step Solution

1. Step 1: Write the proportion equation
   890,387.38 : 1,228,269.77 = 546,300.06 : x
2. Step 2: Convert to fraction form
   890,387.38/1,228,269.77 = 546,300.06/x
3. Step 3: Cross multiply
   890,387.38x = 1,228,269.77 × 546,300.06
4. Step 4: Simplify right side
   890,387.38x = 671,003,846,315.69
5. Step 5: Solve for x
   x = 671,003,846,315.69/890,387.38
6. Step 6: Final answer
   x = 753,608.90