Finding the Fourth Proportional to 1,932.88, 2,900.84 and 1,385.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.88 : 2,900.84 = 1,385.56 : x
2. Step 2: Convert to fraction form
   1,932.88/2,900.84 = 1,385.56/x
3. Step 3: Cross multiply
   1,932.88x = 2,900.84 × 1,385.56
4. Step 4: Simplify right side
   1,932.88x = 4,019,287.87
5. Step 5: Solve for x
   x = 4,019,287.87/1,932.88
6. Step 6: Final answer
   x = 2,079.43