Finding the Fourth Proportional to 1,256.68, 1,875.74 and 1,072.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.68 : 1,875.74 = 1,072.72 : x
2. Step 2: Convert to fraction form
   1,256.68/1,875.74 = 1,072.72/x
3. Step 3: Cross multiply
   1,256.68x = 1,875.74 × 1,072.72
4. Step 4: Simplify right side
   1,256.68x = 2,012,143.81
5. Step 5: Solve for x
   x = 2,012,143.81/1,256.68
6. Step 6: Final answer
   x = 1,601.16