Finding the Fourth Proportional to 1,533.22, 2,116.45 and 974.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,533.22 : 2,116.45 = 974.00 : x
2. Step 2: Convert to fraction form
   1,533.22/2,116.45 = 974.00/x
3. Step 3: Cross multiply
   1,533.22x = 2,116.45 × 974.00
4. Step 4: Simplify right side
   1,533.22x = 2,061,409.28
5. Step 5: Solve for x
   x = 2,061,409.28/1,533.22
6. Step 6: Final answer
   x = 1,344.50