Finding the Fourth Proportional to 1,870,311.25, 2,580,977.75 and 1,054,507.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,311.25 : 2,580,977.75 = 1,054,507.69 : x
2. Step 2: Convert to fraction form
   1,870,311.25/2,580,977.75 = 1,054,507.69/x
3. Step 3: Cross multiply
   1,870,311.25x = 2,580,977.75 × 1,054,507.69
4. Step 4: Simplify right side
   1,870,311.25x = 2,721,660,866,916.47
5. Step 5: Solve for x
   x = 2,721,660,866,916.47/1,870,311.25
6. Step 6: Final answer
   x = 1,455,191.41