Finding the Fourth Proportional to 1,051.00, 1,449.77 and 770.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.00 : 1,449.77 = 770.74 : x
2. Step 2: Convert to fraction form
   1,051.00/1,449.77 = 770.74/x
3. Step 3: Cross multiply
   1,051.00x = 1,449.77 × 770.74
4. Step 4: Simplify right side
   1,051.00x = 1,117,388.25
5. Step 5: Solve for x
   x = 1,117,388.25/1,051.00
6. Step 6: Final answer
   x = 1,063.17