Finding the Fourth Proportional to 1,061.73, 1,591.64 and 377.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.73 : 1,591.64 = 377.57 : x
2. Step 2: Convert to fraction form
   1,061.73/1,591.64 = 377.57/x
3. Step 3: Cross multiply
   1,061.73x = 1,591.64 × 377.57
4. Step 4: Simplify right side
   1,061.73x = 600,953.63
5. Step 5: Solve for x
   x = 600,953.63/1,061.73
6. Step 6: Final answer
   x = 566.01