Finding the Fourth Proportional to 2,990.42, 4,485.62 and 1,041.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,990.42 : 4,485.62 = 1,041.25 : x
2. Step 2: Convert to fraction form
   2,990.42/4,485.62 = 1,041.25/x
3. Step 3: Cross multiply
   2,990.42x = 4,485.62 × 1,041.25
4. Step 4: Simplify right side
   2,990.42x = 4,670,651.83
5. Step 5: Solve for x
   x = 4,670,651.83/2,990.42
6. Step 6: Final answer
   x = 1,561.87