Finding the Fourth Proportional to 1,602.15, 2,210.71 and 903.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.15 : 2,210.71 = 903.39 : x
2. Step 2: Convert to fraction form
   1,602.15/2,210.71 = 903.39/x
3. Step 3: Cross multiply
   1,602.15x = 2,210.71 × 903.39
4. Step 4: Simplify right side
   1,602.15x = 1,997,133.31
5. Step 5: Solve for x
   x = 1,997,133.31/1,602.15
6. Step 6: Final answer
   x = 1,246.53