Finding the Fourth Proportional to 1,156.41, 1,597.88 and 1,008.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.41 : 1,597.88 = 1,008.79 : x
2. Step 2: Convert to fraction form
   1,156.41/1,597.88 = 1,008.79/x
3. Step 3: Cross multiply
   1,156.41x = 1,597.88 × 1,008.79
4. Step 4: Simplify right side
   1,156.41x = 1,611,925.37
5. Step 5: Solve for x
   x = 1,611,925.37/1,156.41
6. Step 6: Final answer
   x = 1,393.90