Finding the Fourth Proportional to 3,390,538.15, 5,085,846.86 and 994,430.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,390,538.15 : 5,085,846.86 = 994,430.88 : x
2. Step 2: Convert to fraction form
   3,390,538.15/5,085,846.86 = 994,430.88/x
3. Step 3: Cross multiply
   3,390,538.15x = 5,085,846.86 × 994,430.88
4. Step 4: Simplify right side
   3,390,538.15x = 5,057,523,150,084.63
5. Step 5: Solve for x
   x = 5,057,523,150,084.63/3,390,538.15
6. Step 6: Final answer
   x = 1,491,657.94