Finding the Fourth Proportional to 2,164,062.80, 2,985,870.12 and 1,399,196

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164,062.80 : 2,985,870.12 = 1,399,196 : x
2. Step 2: Convert to fraction form
   2,164,062.80/2,985,870.12 = 1,399,196/x
3. Step 3: Cross multiply
   2,164,062.80x = 2,985,870.12 × 1,399,196
4. Step 4: Simplify right side
   2,164,062.80x = 4,177,817,528,423.52
5. Step 5: Solve for x
   x = 4,177,817,528,423.52/2,164,062.80
6. Step 6: Final answer
   x = 1,930,543.57