Finding the Fourth Proportional to 691,003.38, 953,258.72 and 404,346

Step by Step Solution

1. Step 1: Write the proportion equation
   691,003.38 : 953,258.72 = 404,346 : x
2. Step 2: Convert to fraction form
   691,003.38/953,258.72 = 404,346/x
3. Step 3: Cross multiply
   691,003.38x = 953,258.72 × 404,346
4. Step 4: Simplify right side
   691,003.38x = 385,446,348,375.39
5. Step 5: Solve for x
   x = 385,446,348,375.39/691,003.38
6. Step 6: Final answer
   x = 557,806.75