Finding the Fourth Proportional to 1,837.60, 2,754.96 and 1,258.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837.60 : 2,754.96 = 1,258.72 : x
2. Step 2: Convert to fraction form
   1,837.60/2,754.96 = 1,258.72/x
3. Step 3: Cross multiply
   1,837.60x = 2,754.96 × 1,258.72
4. Step 4: Simplify right side
   1,837.60x = 3,467,723.25
5. Step 5: Solve for x
   x = 3,467,723.25/1,837.60
6. Step 6: Final answer
   x = 1,887.09