Finding the Fourth Proportional to 1,604.63, 2,214.12 and 975.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.63 : 2,214.12 = 975.05 : x
2. Step 2: Convert to fraction form
   1,604.63/2,214.12 = 975.05/x
3. Step 3: Cross multiply
   1,604.63x = 2,214.12 × 975.05
4. Step 4: Simplify right side
   1,604.63x = 2,158,877.71
5. Step 5: Solve for x
   x = 2,158,877.71/1,604.63
6. Step 6: Final answer
   x = 1,345.41