Finding the Fourth Proportional to 1,812,356, 2,501,054.16 and 1,007,540

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812,356 : 2,501,054.16 = 1,007,540 : x
2. Step 2: Convert to fraction form
   1,812,356/2,501,054.16 = 1,007,540/x
3. Step 3: Cross multiply
   1,812,356x = 2,501,054.16 × 1,007,540
4. Step 4: Simplify right side
   1,812,356x = 2,519,912,108,366.40
5. Step 5: Solve for x
   x = 2,519,912,108,366.40/1,812,356
6. Step 6: Final answer
   x = 1,390,406.80