Finding the Fourth Proportional to 2,472.34, 3,706.76 and 1,238.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.34 : 3,706.76 = 1,238.87 : x
2. Step 2: Convert to fraction form
   2,472.34/3,706.76 = 1,238.87/x
3. Step 3: Cross multiply
   2,472.34x = 3,706.76 × 1,238.87
4. Step 4: Simplify right side
   2,472.34x = 4,592,193.76
5. Step 5: Solve for x
   x = 4,592,193.76/2,472.34
6. Step 6: Final answer
   x = 1,857.43