Finding the Fourth Proportional to 2,045.30, 3,065.55 and 1,070.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.30 : 3,065.55 = 1,070.90 : x
2. Step 2: Convert to fraction form
   2,045.30/3,065.55 = 1,070.90/x
3. Step 3: Cross multiply
   2,045.30x = 3,065.55 × 1,070.90
4. Step 4: Simplify right side
   2,045.30x = 3,282,897.50
5. Step 5: Solve for x
   x = 3,282,897.50/2,045.30
6. Step 6: Final answer
   x = 1,605.09