Finding the Fourth Proportional to 2,152.63, 2,964.76 and 1,857.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.63 : 2,964.76 = 1,857.79 : x
2. Step 2: Convert to fraction form
   2,152.63/2,964.76 = 1,857.79/x
3. Step 3: Cross multiply
   2,152.63x = 2,964.76 × 1,857.79
4. Step 4: Simplify right side
   2,152.63x = 5,507,901.48
5. Step 5: Solve for x
   x = 5,507,901.48/2,152.63
6. Step 6: Final answer
   x = 2,558.68