Finding the Fourth Proportional to 2,128.87, 2,937.61 and 1,184.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.87 : 2,937.61 = 1,184.51 : x
2. Step 2: Convert to fraction form
   2,128.87/2,937.61 = 1,184.51/x
3. Step 3: Cross multiply
   2,128.87x = 2,937.61 × 1,184.51
4. Step 4: Simplify right side
   2,128.87x = 3,479,607.81
5. Step 5: Solve for x
   x = 3,479,607.81/2,128.87
6. Step 6: Final answer
   x = 1,634.49