Finding the Fourth Proportional to 1,368.24, 1,886.29 and 1,031.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.24 : 1,886.29 = 1,031.99 : x
2. Step 2: Convert to fraction form
   1,368.24/1,886.29 = 1,031.99/x
3. Step 3: Cross multiply
   1,368.24x = 1,886.29 × 1,031.99
4. Step 4: Simplify right side
   1,368.24x = 1,946,631.02
5. Step 5: Solve for x
   x = 1,946,631.02/1,368.24
6. Step 6: Final answer
   x = 1,422.72