Finding the Fourth Proportional to 1,604.34, 2,213.76 and 975.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.34 : 2,213.76 = 975.00 : x
2. Step 2: Convert to fraction form
   1,604.34/2,213.76 = 975.00/x
3. Step 3: Cross multiply
   1,604.34x = 2,213.76 × 975.00
4. Step 4: Simplify right side
   1,604.34x = 2,158,404.93
5. Step 5: Solve for x
   x = 2,158,404.93/1,604.34
6. Step 6: Final answer
   x = 1,345.36