Finding the Fourth Proportional to 1,666,838.32, 2,300,189.82 and 978,499.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666,838.32 : 2,300,189.82 = 978,499.18 : x
2. Step 2: Convert to fraction form
   1,666,838.32/2,300,189.82 = 978,499.18/x
3. Step 3: Cross multiply
   1,666,838.32x = 2,300,189.82 × 978,499.18
4. Step 4: Simplify right side
   1,666,838.32x = 2,250,733,852,714.35
5. Step 5: Solve for x
   x = 2,250,733,852,714.35/1,666,838.32
6. Step 6: Final answer
   x = 1,350,301.24