Finding the Fourth Proportional to 2,381.17, 3,570.51 and 900.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.17 : 3,570.51 = 900.16 : x
2. Step 2: Convert to fraction form
   2,381.17/3,570.51 = 900.16/x
3. Step 3: Cross multiply
   2,381.17x = 3,570.51 × 900.16
4. Step 4: Simplify right side
   2,381.17x = 3,214,037.22
5. Step 5: Solve for x
   x = 3,214,037.22/2,381.17
6. Step 6: Final answer
   x = 1,349.77