Finding the Fourth Proportional to 2,278,461.51, 3,145,068.69 and 1,311,977.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278,461.51 : 3,145,068.69 = 1,311,977.01 : x
2. Step 2: Convert to fraction form
   2,278,461.51/3,145,068.69 = 1,311,977.01/x
3. Step 3: Cross multiply
   2,278,461.51x = 3,145,068.69 × 1,311,977.01
4. Step 4: Simplify right side
   2,278,461.51x = 4,126,257,816,150.82
5. Step 5: Solve for x
   x = 4,126,257,816,150.82/2,278,461.51
6. Step 6: Final answer
   x = 1,810,984.21