Finding the Fourth Proportional to 1,870,826.80, 2,806,240.20 and 1,853,112.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,826.80 : 2,806,240.20 = 1,853,112.10 : x
2. Step 2: Convert to fraction form
   1,870,826.80/2,806,240.20 = 1,853,112.10/x
3. Step 3: Cross multiply
   1,870,826.80x = 2,806,240.20 × 1,853,112.10
4. Step 4: Simplify right side
   1,870,826.80x = 5,200,277,670,126.42
5. Step 5: Solve for x
   x = 5,200,277,670,126.42/1,870,826.80
6. Step 6: Final answer
   x = 2,779,668.15