Finding the Fourth Proportional to 893,641.39, 1,233,233.89 and 485,742.98

Step by Step Solution

1. Step 1: Write the proportion equation
   893,641.39 : 1,233,233.89 = 485,742.98 : x
2. Step 2: Convert to fraction form
   893,641.39/1,233,233.89 = 485,742.98/x
3. Step 3: Cross multiply
   893,641.39x = 1,233,233.89 × 485,742.98
4. Step 4: Simplify right side
   893,641.39x = 599,034,704,765.59
5. Step 5: Solve for x
   x = 599,034,704,765.59/893,641.39
6. Step 6: Final answer
   x = 670,330.08