Finding the Fourth Proportional to 1,419.96, 1,959.56 and 790.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.96 : 1,959.56 = 790.53 : x
2. Step 2: Convert to fraction form
   1,419.96/1,959.56 = 790.53/x
3. Step 3: Cross multiply
   1,419.96x = 1,959.56 × 790.53
4. Step 4: Simplify right side
   1,419.96x = 1,549,087.01
5. Step 5: Solve for x
   x = 1,549,087.01/1,419.96
6. Step 6: Final answer
   x = 1,090.94