Finding the Fourth Proportional to 1,603.59, 2,211.95 and 973.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603.59 : 2,211.95 = 973.50 : x
2. Step 2: Convert to fraction form
   1,603.59/2,211.95 = 973.50/x
3. Step 3: Cross multiply
   1,603.59x = 2,211.95 × 973.50
4. Step 4: Simplify right side
   1,603.59x = 2,153,333.33
5. Step 5: Solve for x
   x = 2,153,333.33/1,603.59
6. Step 6: Final answer
   x = 1,342.82