Finding the Fourth Proportional to 1,813,428.72, 2,502,496.80 and 997,584.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813,428.72 : 2,502,496.80 = 997,584.72 : x
2. Step 2: Convert to fraction form
   1,813,428.72/2,502,496.80 = 997,584.72/x
3. Step 3: Cross multiply
   1,813,428.72x = 2,502,496.80 × 997,584.72
4. Step 4: Simplify right side
   1,813,428.72x = 2,496,452,569,528.90
5. Step 5: Solve for x
   x = 2,496,452,569,528.90/1,813,428.72
6. Step 6: Final answer
   x = 1,376,647.75