Finding the Fourth Proportional to 2,375.70, 3,566.16 and 990.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,375.70 : 3,566.16 = 990.02 : x
2. Step 2: Convert to fraction form
   2,375.70/3,566.16 = 990.02/x
3. Step 3: Cross multiply
   2,375.70x = 3,566.16 × 990.02
4. Step 4: Simplify right side
   2,375.70x = 3,530,569.72
5. Step 5: Solve for x
   x = 3,530,569.72/2,375.70
6. Step 6: Final answer
   x = 1,486.12