Finding the Fourth Proportional to 2,130.87, 3,194.72 and 1,435.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.87 : 3,194.72 = 1,435.59 : x
2. Step 2: Convert to fraction form
   2,130.87/3,194.72 = 1,435.59/x
3. Step 3: Cross multiply
   2,130.87x = 3,194.72 × 1,435.59
4. Step 4: Simplify right side
   2,130.87x = 4,586,300.91
5. Step 5: Solve for x
   x = 4,586,300.91/2,130.87
6. Step 6: Final answer
   x = 2,152.31