Finding the Fourth Proportional to 1,891.04, 2,609.32 and 1,051.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.04 : 2,609.32 = 1,051.72 : x
2. Step 2: Convert to fraction form
   1,891.04/2,609.32 = 1,051.72/x
3. Step 3: Cross multiply
   1,891.04x = 2,609.32 × 1,051.72
4. Step 4: Simplify right side
   1,891.04x = 2,744,274.03
5. Step 5: Solve for x
   x = 2,744,274.03/1,891.04
6. Step 6: Final answer
   x = 1,451.20