Finding the Fourth Proportional to 1,592.42, 2,389.59 and 619.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,592.42 : 2,389.59 = 619.34 : x
2. Step 2: Convert to fraction form
   1,592.42/2,389.59 = 619.34/x
3. Step 3: Cross multiply
   1,592.42x = 2,389.59 × 619.34
4. Step 4: Simplify right side
   1,592.42x = 1,479,968.67
5. Step 5: Solve for x
   x = 1,479,968.67/1,592.42
6. Step 6: Final answer
   x = 929.38