Finding the Fourth Proportional to 1,557.46, 2,336.18 and 900.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557.46 : 2,336.18 = 900.34 : x
2. Step 2: Convert to fraction form
   1,557.46/2,336.18 = 900.34/x
3. Step 3: Cross multiply
   1,557.46x = 2,336.18 × 900.34
4. Step 4: Simplify right side
   1,557.46x = 2,103,356.30
5. Step 5: Solve for x
   x = 2,103,356.30/1,557.46
6. Step 6: Final answer
   x = 1,350.50