Finding the Fourth Proportional to 2,167,134.64, 2,990,667.78 and 1,307,528.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167,134.64 : 2,990,667.78 = 1,307,528.80 : x
2. Step 2: Convert to fraction form
   2,167,134.64/2,990,667.78 = 1,307,528.80/x
3. Step 3: Cross multiply
   2,167,134.64x = 2,990,667.78 × 1,307,528.80
4. Step 4: Simplify right side
   2,167,134.64x = 3,910,384,253,582.06
5. Step 5: Solve for x
   x = 3,910,384,253,582.06/2,167,134.64
6. Step 6: Final answer
   x = 1,804,403.00