Finding the Fourth Proportional to 1,488.72, 2,236.50 and 1,050.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.72 : 2,236.50 = 1,050.98 : x
2. Step 2: Convert to fraction form
   1,488.72/2,236.50 = 1,050.98/x
3. Step 3: Cross multiply
   1,488.72x = 2,236.50 × 1,050.98
4. Step 4: Simplify right side
   1,488.72x = 2,350,516.77
5. Step 5: Solve for x
   x = 2,350,516.77/1,488.72
6. Step 6: Final answer
   x = 1,578.88