Finding the Fourth Proportional to 1,595.58, 2,392.89 and 621.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,595.58 : 2,392.89 = 621.45 : x
2. Step 2: Convert to fraction form
   1,595.58/2,392.89 = 621.45/x
3. Step 3: Cross multiply
   1,595.58x = 2,392.89 × 621.45
4. Step 4: Simplify right side
   1,595.58x = 1,487,061.49
5. Step 5: Solve for x
   x = 1,487,061.49/1,595.58
6. Step 6: Final answer
   x = 931.99