Finding the Fourth Proportional to 1,927.15, 2,659.47 and 1,087.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,927.15 : 2,659.47 = 1,087.89 : x
2. Step 2: Convert to fraction form
   1,927.15/2,659.47 = 1,087.89/x
3. Step 3: Cross multiply
   1,927.15x = 2,659.47 × 1,087.89
4. Step 4: Simplify right side
   1,927.15x = 2,893,210.82
5. Step 5: Solve for x
   x = 2,893,210.82/1,927.15
6. Step 6: Final answer
   x = 1,501.29