Finding the Fourth Proportional to 1,434.65, 2,152.04 and 1,247.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.65 : 2,152.04 = 1,247.99 : x
2. Step 2: Convert to fraction form
   1,434.65/2,152.04 = 1,247.99/x
3. Step 3: Cross multiply
   1,434.65x = 2,152.04 × 1,247.99
4. Step 4: Simplify right side
   1,434.65x = 2,685,707.40
5. Step 5: Solve for x
   x = 2,685,707.40/1,434.65
6. Step 6: Final answer
   x = 1,872.04