Finding the Fourth Proportional to 2,333.49, 3,499.74 and 690.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.49 : 3,499.74 = 690.05 : x
2. Step 2: Convert to fraction form
   2,333.49/3,499.74 = 690.05/x
3. Step 3: Cross multiply
   2,333.49x = 3,499.74 × 690.05
4. Step 4: Simplify right side
   2,333.49x = 2,415,004.34
5. Step 5: Solve for x
   x = 2,415,004.34/2,333.49
6. Step 6: Final answer
   x = 1,034.93