Finding the Fourth Proportional to 2,488.74, 3,730.95 and 1,188.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.74 : 3,730.95 = 1,188.42 : x
2. Step 2: Convert to fraction form
   2,488.74/3,730.95 = 1,188.42/x
3. Step 3: Cross multiply
   2,488.74x = 3,730.95 × 1,188.42
4. Step 4: Simplify right side
   2,488.74x = 4,433,935.60
5. Step 5: Solve for x
   x = 4,433,935.60/2,488.74
6. Step 6: Final answer
   x = 1,781.60