Finding the Fourth Proportional to 1,090.46, 1,504.61 and 692.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090.46 : 1,504.61 = 692.25 : x
2. Step 2: Convert to fraction form
   1,090.46/1,504.61 = 692.25/x
3. Step 3: Cross multiply
   1,090.46x = 1,504.61 × 692.25
4. Step 4: Simplify right side
   1,090.46x = 1,041,559.76
5. Step 5: Solve for x
   x = 1,041,559.76/1,090.46
6. Step 6: Final answer
   x = 955.15