Finding the Fourth Proportional to 1,089,613.31, 1,503,686.55 and 606,223.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089,613.31 : 1,503,686.55 = 606,223.43 : x
2. Step 2: Convert to fraction form
   1,089,613.31/1,503,686.55 = 606,223.43/x
3. Step 3: Cross multiply
   1,089,613.31x = 1,503,686.55 × 606,223.43
4. Step 4: Simplify right side
   1,089,613.31x = 911,570,010,467.43
5. Step 5: Solve for x
   x = 911,570,010,467.43/1,089,613.31
6. Step 6: Final answer
   x = 836,599.56