Finding the Fourth Proportional to 1,419.47, 1,958.83 and 790.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.47 : 1,958.83 = 790.00 : x
2. Step 2: Convert to fraction form
   1,419.47/1,958.83 = 790.00/x
3. Step 3: Cross multiply
   1,419.47x = 1,958.83 × 790.00
4. Step 4: Simplify right side
   1,419.47x = 1,547,465.91
5. Step 5: Solve for x
   x = 1,547,465.91/1,419.47
6. Step 6: Final answer
   x = 1,090.17