Finding the Fourth Proportional to 751,530.57, 1,036,641.59 and 493,420.83

Step by Step Solution

1. Step 1: Write the proportion equation
   751,530.57 : 1,036,641.59 = 493,420.83 : x
2. Step 2: Convert to fraction form
   751,530.57/1,036,641.59 = 493,420.83/x
3. Step 3: Cross multiply
   751,530.57x = 1,036,641.59 × 493,420.83
4. Step 4: Simplify right side
   751,530.57x = 511,500,546,100.01
5. Step 5: Solve for x
   x = 511,500,546,100.01/751,530.57
6. Step 6: Final answer
   x = 680,611.77