Finding the Fourth Proportional to 1,672.62, 2,308.60 and 1,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.62 : 2,308.60 = 1,051.50 : x
2. Step 2: Convert to fraction form
   1,672.62/2,308.60 = 1,051.50/x
3. Step 3: Cross multiply
   1,672.62x = 2,308.60 × 1,051.50
4. Step 4: Simplify right side
   1,672.62x = 2,427,492.90
5. Step 5: Solve for x
   x = 2,427,492.90/1,672.62
6. Step 6: Final answer
   x = 1,451.31