Finding the Fourth Proportional to 1,815.46, 2,503.95 and 1,256.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.46 : 2,503.95 = 1,256.86 : x
2. Step 2: Convert to fraction form
   1,815.46/2,503.95 = 1,256.86/x
3. Step 3: Cross multiply
   1,815.46x = 2,503.95 × 1,256.86
4. Step 4: Simplify right side
   1,815.46x = 3,147,108.34
5. Step 5: Solve for x
   x = 3,147,108.34/1,815.46
6. Step 6: Final answer
   x = 1,733.51