Finding the Fourth Proportional to 3,435.84, 5,145.52 and 1,970.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,435.84 : 5,145.52 = 1,970.56 : x
2. Step 2: Convert to fraction form
   3,435.84/5,145.52 = 1,970.56/x
3. Step 3: Cross multiply
   3,435.84x = 5,145.52 × 1,970.56
4. Step 4: Simplify right side
   3,435.84x = 10,139,555.89
5. Step 5: Solve for x
   x = 10,139,555.89/3,435.84
6. Step 6: Final answer
   x = 2,951.11