Finding the Fourth Proportional to 1,340,300.10, 2,010,061.35 and 487,272.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340,300.10 : 2,010,061.35 = 487,272.90 : x
2. Step 2: Convert to fraction form
   1,340,300.10/2,010,061.35 = 487,272.90/x
3. Step 3: Cross multiply
   1,340,300.10x = 2,010,061.35 × 487,272.90
4. Step 4: Simplify right side
   1,340,300.10x = 979,448,423,192.42
5. Step 5: Solve for x
   x = 979,448,423,192.42/1,340,300.10
6. Step 6: Final answer
   x = 730,768.00