Finding the Fourth Proportional to 1,931.50, 2,663.67 and 1,488.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.50 : 2,663.67 = 1,488.70 : x
2. Step 2: Convert to fraction form
   1,931.50/2,663.67 = 1,488.70/x
3. Step 3: Cross multiply
   1,931.50x = 2,663.67 × 1,488.70
4. Step 4: Simplify right side
   1,931.50x = 3,965,405.53
5. Step 5: Solve for x
   x = 3,965,405.53/1,931.50
6. Step 6: Final answer
   x = 2,053.02