Finding the Fourth Proportional to 1,156.74, 1,595.29 and 819.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.74 : 1,595.29 = 819.98 : x
2. Step 2: Convert to fraction form
   1,156.74/1,595.29 = 819.98/x
3. Step 3: Cross multiply
   1,156.74x = 1,595.29 × 819.98
4. Step 4: Simplify right side
   1,156.74x = 1,308,098.17
5. Step 5: Solve for x
   x = 1,308,098.17/1,156.74
6. Step 6: Final answer
   x = 1,130.85