Finding the Fourth Proportional to 789,134, 1,089,008.76 and 431,438

Step by Step Solution

1. Step 1: Write the proportion equation
   789,134 : 1,089,008.76 = 431,438 : x
2. Step 2: Convert to fraction form
   789,134/1,089,008.76 = 431,438/x
3. Step 3: Cross multiply
   789,134x = 1,089,008.76 × 431,438
4. Step 4: Simplify right side
   789,134x = 469,839,761,396.88
5. Step 5: Solve for x
   x = 469,839,761,396.88/789,134
6. Step 6: Final answer
   x = 595,386.54