Finding the Fourth Proportional to 2,087.51, 3,126.28 and 1,160.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.51 : 3,126.28 = 1,160.77 : x
2. Step 2: Convert to fraction form
   2,087.51/3,126.28 = 1,160.77/x
3. Step 3: Cross multiply
   2,087.51x = 3,126.28 × 1,160.77
4. Step 4: Simplify right side
   2,087.51x = 3,628,881.32
5. Step 5: Solve for x
   x = 3,628,881.32/2,087.51
6. Step 6: Final answer
   x = 1,738.38