Finding the Fourth Proportional to 848,406.76, 1,171,053.72 and 486,071.89

Step by Step Solution

1. Step 1: Write the proportion equation
   848,406.76 : 1,171,053.72 = 486,071.89 : x
2. Step 2: Convert to fraction form
   848,406.76/1,171,053.72 = 486,071.89/x
3. Step 3: Cross multiply
   848,406.76x = 1,171,053.72 × 486,071.89
4. Step 4: Simplify right side
   848,406.76x = 569,216,292,044.30
5. Step 5: Solve for x
   x = 569,216,292,044.30/848,406.76
6. Step 6: Final answer
   x = 670,923.81