Finding the Fourth Proportional to 910,112, 1,364,105 and 684,748.40

Step by Step Solution

1. Step 1: Write the proportion equation
   910,112 : 1,364,105 = 684,748.40 : x
2. Step 2: Convert to fraction form
   910,112/1,364,105 = 684,748.40/x
3. Step 3: Cross multiply
   910,112x = 1,364,105 × 684,748.40
4. Step 4: Simplify right side
   910,112x = 934,068,716,182
5. Step 5: Solve for x
   x = 934,068,716,182/910,112
6. Step 6: Final answer
   x = 1,026,322.82