Finding the Fourth Proportional to 931,392, 1,397,100.96 and 266,544

Step by Step Solution

1. Step 1: Write the proportion equation
   931,392 : 1,397,100.96 = 266,544 : x
2. Step 2: Convert to fraction form
   931,392/1,397,100.96 = 266,544/x
3. Step 3: Cross multiply
   931,392x = 1,397,100.96 × 266,544
4. Step 4: Simplify right side
   931,392x = 372,388,878,282.24
5. Step 5: Solve for x
   x = 372,388,878,282.24/931,392
6. Step 6: Final answer
   x = 399,819.71