Finding the Fourth Proportional to 2,045.72, 2,818.90 and 1,935.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.72 : 2,818.90 = 1,935.43 : x
2. Step 2: Convert to fraction form
   2,045.72/2,818.90 = 1,935.43/x
3. Step 3: Cross multiply
   2,045.72x = 2,818.90 × 1,935.43
4. Step 4: Simplify right side
   2,045.72x = 5,455,783.63
5. Step 5: Solve for x
   x = 5,455,783.63/2,045.72
6. Step 6: Final answer
   x = 2,666.93