Finding the Fourth Proportional to 2,543.02, 3,814.61 and 900.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.02 : 3,814.61 = 900.70 : x
2. Step 2: Convert to fraction form
   2,543.02/3,814.61 = 900.70/x
3. Step 3: Cross multiply
   2,543.02x = 3,814.61 × 900.70
4. Step 4: Simplify right side
   2,543.02x = 3,435,819.23
5. Step 5: Solve for x
   x = 3,435,819.23/2,543.02
6. Step 6: Final answer
   x = 1,351.08