Finding the Fourth Proportional to 1,341.89, 1,849.59 and 899.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.89 : 1,849.59 = 899.63 : x
2. Step 2: Convert to fraction form
   1,341.89/1,849.59 = 899.63/x
3. Step 3: Cross multiply
   1,341.89x = 1,849.59 × 899.63
4. Step 4: Simplify right side
   1,341.89x = 1,663,946.65
5. Step 5: Solve for x
   x = 1,663,946.65/1,341.89
6. Step 6: Final answer
   x = 1,240.00