Finding the Fourth Proportional to 1,354.24, 1,870.32 and 913.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.24 : 1,870.32 = 913.96 : x
2. Step 2: Convert to fraction form
   1,354.24/1,870.32 = 913.96/x
3. Step 3: Cross multiply
   1,354.24x = 1,870.32 × 913.96
4. Step 4: Simplify right side
   1,354.24x = 1,709,397.67
5. Step 5: Solve for x
   x = 1,709,397.67/1,354.24
6. Step 6: Final answer
   x = 1,262.26