Finding the Fourth Proportional to 1,437.86, 1,981.69 and 1,238.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.86 : 1,981.69 = 1,238.18 : x
2. Step 2: Convert to fraction form
   1,437.86/1,981.69 = 1,238.18/x
3. Step 3: Cross multiply
   1,437.86x = 1,981.69 × 1,238.18
4. Step 4: Simplify right side
   1,437.86x = 2,453,675.92
5. Step 5: Solve for x
   x = 2,453,675.92/1,437.86
6. Step 6: Final answer
   x = 1,706.48