Finding the Fourth Proportional to 1,487.72, 2,235 and 1,049.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,487.72 : 2,235 = 1,049.98 : x
2. Step 2: Convert to fraction form
   1,487.72/2,235 = 1,049.98/x
3. Step 3: Cross multiply
   1,487.72x = 2,235 × 1,049.98
4. Step 4: Simplify right side
   1,487.72x = 2,346,705.30
5. Step 5: Solve for x
   x = 2,346,705.30/1,487.72
6. Step 6: Final answer
   x = 1,577.38