Finding the Fourth Proportional to 1,314.34, 1,970.22 and 436.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.34 : 1,970.22 = 436.24 : x
2. Step 2: Convert to fraction form
   1,314.34/1,970.22 = 436.24/x
3. Step 3: Cross multiply
   1,314.34x = 1,970.22 × 436.24
4. Step 4: Simplify right side
   1,314.34x = 859,488.77
5. Step 5: Solve for x
   x = 859,488.77/1,314.34
6. Step 6: Final answer
   x = 653.93