Finding the Fourth Proportional to 1,773.91, 2,660.82 and 619.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.91 : 2,660.82 = 619.63 : x
2. Step 2: Convert to fraction form
   1,773.91/2,660.82 = 619.63/x
3. Step 3: Cross multiply
   1,773.91x = 2,660.82 × 619.63
4. Step 4: Simplify right side
   1,773.91x = 1,648,710.59
5. Step 5: Solve for x
   x = 1,648,710.59/1,773.91
6. Step 6: Final answer
   x = 929.42