Finding the Fourth Proportional to 1,885.21, 2,601.59 and 1,045.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.21 : 2,601.59 = 1,045.91 : x
2. Step 2: Convert to fraction form
   1,885.21/2,601.59 = 1,045.91/x
3. Step 3: Cross multiply
   1,885.21x = 2,601.59 × 1,045.91
4. Step 4: Simplify right side
   1,885.21x = 2,721,030.27
5. Step 5: Solve for x
   x = 2,721,030.27/1,885.21
6. Step 6: Final answer
   x = 1,443.36