Finding the Fourth Proportional to 1,314.74, 1,814.82 and 790.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.74 : 1,814.82 = 790.68 : x
2. Step 2: Convert to fraction form
   1,314.74/1,814.82 = 790.68/x
3. Step 3: Cross multiply
   1,314.74x = 1,814.82 × 790.68
4. Step 4: Simplify right side
   1,314.74x = 1,434,941.88
5. Step 5: Solve for x
   x = 1,434,941.88/1,314.74
6. Step 6: Final answer
   x = 1,091.43